The flagship

SS Slim Series Smart Lock

The last thing you'll think about leaving the house.

Your home, sealed and settled, wherever you are. Fingerprint, phone, code, fob or key: every way in, entirely yours.

£349.99

simpled.uk on Trustpilot: 4.8 · 396 reviews (opens in a new tab)

Simpled SS Slim Series smart lock in black, outside and inside: die-cast aluminium-alloy handles and a stainless steel outside panel

Why the SS Slim Series.

No More Searching for Keys

Unlock with your fingerprint at the handle, without reaching for your keys or phone.

Woman using the fingerprint reader on a Simpled smart door lock handle.

Let Someone In While You’re Away

Unlock remotely through built-in Wi-Fi, without a separate bridge, while your lock is online.

Woman holding a smartphone beside a Simpled smart door lock on a wooden front door.

Extra Protection Around Your Letterbox

The internal Safety Button helps prevent the inside handle being operated simply by reaching through the letterbox.

Close-up of a hand operating the internal handle of a Simpled smart lock, with a safety button detail inset.

Share Access, Not Spare Keys

Give family and visitors their own access, with permanent, timed, recurring or one-time options.

Two smartphone users shown alongside a Simpled smart door lock, illustrating shared digital access

Smart Access for Your Multipoint Door

Upgrade a compatible door while keeping the familiar lift-to-lock action.

Hand operating a Simpled smart lock handle on a wooden door, with the multipoint locking strip visible

Confidence in Connected Security

Choose a smart lock covered by BSI certification for consumer IoT cyber security.

Simpled smart door lock on a wooden door beside a cyber security shield graphic

Make it yours

Configure your lock.

Choose your finish. UK delivery is free, with 60 days to change your mind.

  • Simpled SS Smart Door Lock
  • SS Slim Series Smart Lock
    SS Slim Series Smart Lock
  • SS Slim Series Smart Lock
    SS Slim Series Smart Lock
  • SS Slim Series Smart Lock
    SS Slim Series Smart Lock
  • SS Slim Series Smart Lock
    SS Slim Series Smart Lock
  • SS Slim Series Smart Lock
    SS Slim Series Smart Lock
11 photos and 1 video

The flagship

SS Slim Series Smart Lock

simpled.uk on Trustpilot: 4.8 · 396 reviews (opens in a new tab)

£349.99

Price in GBP, including VAT.

Colour· Silver
Capability

Available on backorder · usually delivered in 70 working days

Check my door first

Fitted on your door by our install partner, where we cover. After you order, you tell us about your door and they book a visit.

Free UK delivery · 60-day money-back guarantee · 24-month warranty

Not sure which model?Help me choose

  • WeatherIP66
  • Security128-bit AES
  • Fingerprints200
  • eKeysUnlimited
Good to know
  • It fits most handle-up multipoint doors (you lift the handle to lock), not multipoint locks with offset spindles. Unsure? Send us a photo of yours.
  • A door thicker than the lock's range needs longer screws and stubs, bought separately.
  • Alexa, Google Home and unlocking from away need the built-in WiFi model or the WiFi Gateway; Bluetooth works on its own.
On backorder · 70 working days
£349.99

The detail

Everything about the SS Slim Series Smart Lock

Details

Experience Smarter Access with the Simpled SS Slim Series Smart Lock

The Simpled SS Slim Series Smart Lock offers a smarter and more streamlined way to secure your door. Designed for modern living, it combines a slim, minimal profile with advanced access control for everyday convenience.
Using the TTLock App, you can manage access easily by creating digital keys, setting temporary passcodes, and viewing activity records. Multiple unlocking options provide flexibility for different users, while mechanical keys are included for added peace of mind.
Built for daily use, the SS Slim Series delivers reliable performance and intuitive control — staying true to Simpled’s commitment to simple, secure, and smart access.

Specifications

Features

  • Weatherproof (IP66 rating)
  • Fits most existing handle-up multipoint mechanisms
  • 24 months warranty
  • Handles are reversible, left or right, no problem!
  • Auto-Lock feature – No guesswork, No doubt! It will lock it for you!
  • Share Timed eKey or Passcodes; managing an AirBnB suite has never been easier
  • Passage Mode – When this mode is turned on, the door remains unlocked after the next unlocking until you actively choose to re-lock it.
  • NOT compatible with multipoint locks with offset spindles. Want to make sure? Take a video/picture and share it on our live chat or contact us page.

Technical Characteristics

  • Model: SS-SP
  • Materials: Handle: ADC12, Panel: SS304
  • Lock Weight: 3.5 KG
  • Unlocking methods: Bluetooth, Fingerprint, Passcode, Proxy Fob / Sticker, Emergency Key, Alexa (WiFi Bridge is needed, except for built in WiFi model), Google home (WiFi Bridge is needed, except for built in WiFi model)
  • Colour: Silver – Black
  • Bank-level encryption: Every Simpled smart lock features robust 128-bit AES protection
  • Low Battery Alarm: Less than 4.8 v
  • Doors Applicable: Aluminium Door, Wooden Door, UPVC doors, etc
  • Working Voltage: 6V/8 x AA Batteries (Energizer Lithium AA Batteries are recommended)
  • Door Thickness to Fit: 40-80 mm (For thicker doors you need to purchase lengthier screws and stubs)
  • Dimensions:-External panel (without handle): Height: 330mm, Width: 42mm, Length: 26mm-External panel (with handle): Height: 330mm, Width: 155mm, Depth: 62mm-Internal panel (without handle): Height: 330mm, Width: 42mm, Length: 26mm-Internal panel (with handle): Height: 330mm, Width: 155mm, Length: 62mm* For more clarity, check the specification image.
  • Data Capacity: Fingerprint: 200, Passcode: 150, Fob: 200, Remote Controller: 1, eKeys (smartphone access): Unlimited
  • Working Temperature: -10°C-55°C

Shipping & Returns

UK delivery is free on every order, and returns are free too.

Every order is covered by our 60-day no-quibble money-back guarantee. If it is not right for your door, send it back.

Every Simpled product carries a 24-month warranty against defects in materials and workmanship.

Full terms: Shipping policy · Terms and conditions

Reviews

No ratings yet.

Customers have asked 6 questions about this product.

  1. Lisa T. asked ·

    How can I get the key in my app wallet to use on my watch and phone?

    1. Sahar answered ·

      Hello,

      Unfortunately, the Simpled locks do not support wallets at the moment. However, you can still add the app (TTLOCK) to your Apple Watch and use the features.

  2. Thomas H. asked ·

    Will you be adding HomeKit integration?

    1. Sahar answered ·

      For now, our smart lock are compatible with Alexa and Google home.

  3. Ramon asked ·

    Will this fit my door?

    1. Sahar answered ·

      Hi there, You can share some pictures ( inside, outside, and a side one to our Simpled Support Team) They would be happy to assist you.

  4. Steven asked ·

    How do I know it’s locked from the inside, can I pull the handle down to make sure it’s locked

    1. Sahar answered ·

      Hello. You can check the status of the lock (locked/unlocked) on the app to make sure the door is locked.

  5. Gurpreet S. asked ·

    I am looking for a smart lock which can not be opened from the inside by a child? Which one of your locks offer this function please?

    1. Sahar answered ·

      You can check our double-sided door handle, which can be locked from the inside and unlocked from the inside only using the app, a remote controller, fingerprint, and fob/tag.

More questions (1)
  1. Carol W. asked ·

    Hi I ordered at the ideal home show today. I stupidly forgot my door has a long aluminium handle that goes down the whole door. I see the spec for depth is 23mm and the gap between the long door handle is 45mm. I’m thinking this is a large enough gap to still fit the smart handle behind it? Can you advise me.

    1. Sahar answered ·

      Hi there Could you please share some pictures with us through the live chat so we can check and advise?

Read what customers say about the whole range

Model code: SS-SP. Quote it when you contact support.

Features of the SS Slim Series Closer. It holds up.

Every feature of the SS Slim Series, one by one. Tap a photo for a closer look.

Simpled SS Slim smart lock on a wooden door beside BSI Certificate of Conformity details
BSI-Certified Cyber SecurityCertified to ETSI EN 303 645 for consumer IoT cyber security. BSI Certificate of Conformity: CNF 835965.
Hand using a smartphone to control a Simpled SS Slim smart lock, with a wireless connection graphic
Built-in Wi-Fi & BluetoothConnect directly to 2.4 GHz Wi-Fi for supported remote functions, or use Bluetooth nearby.
Simpled SS Slim smart lock surrounded by fingerprint, PIN, app, Apple Watch, RFID and emergency key illustrations.
Multiple Unlocking MethodsUse fingerprint, passcode, smartphone, Apple Watch, RFID fob or phone tag, or an emergency mechanical key.
Finger touching the fingerprint sensor built into the handle of a Simpled SS Slim smart lock.
Handle-Mounted Fingerprint ReaderAuthenticate using the fingerprint sensor positioned at the handle.
Hand pressing the inside handle button on a Simpled SS Slim smart lock, with an enlarged button detail
Internal Safety ButtonPress the button before lowering the inside handle. A slider allows normal handle operation when preferred.
Split view of a man using a smartphone and a Simpled SS Slim smart lock, illustrating digital access sharing
Flexible Access SharingCreate permanent, time-limited, one-time or recurring eKeys and assign user permissions.
Hand holding a smartphone displaying a door access notification beside a wooden door
Access HistoryReview unlocking records in the app, including the credential used.
Simpled SS Slim smart lock beside an exposed multipoint door mechanism, with an RFID card held near the reader
Multipoint Lock CompatibilitySupports many common multipoint mechanisms, subject to compatibility checks. Lift the handle to engage bolts and hooks.
Simpled SS Slim smart lock against a brushed metal background with a circular stainless steel detai
Stainless Steel PanelsSS304 stainless steel panels with ADC12 aluminium die-cast handles.
Smartphone showing the Simpled lock control app in front of a closed wooden door fitted with an SS Slim smart lock
Automatic Handle RelockingAdjustable relocking delay after access. Multipoint bolts and hooks still require manual handle lifting.
Simpled SS Slim battery compartment with eight AA batteries and a close-up of the USB-C emergency power port.
Eight AA Batteries & Emergency PowerPowered by eight AA batteries, with a USB-C emergency power input.
Simpled SS Slim smart lock shown alongside several door styles with installation alignment arrows
Fits 98% of UK DoorsDesigned to work with the vast majority of UK door types, making installation simpler without compromising on security or style.
Rain-covered Simpled SS Slim smart lock on a wooden front door, with a woman holding an umbrella outside
IP66 WeatherproofFully protected against dust and strong water exposure.

How to fit the SS Slim Series On your existing door, before the kettle's cold.

  1. Step 01

    Check your door

    Our 60-second checker confirms the SS Slim Series suits your door, or tells you honestly if it won't. No email address needed.

  2. Step 02

    Fit it yourself

    With a screwdriver, on the door you already own. No locksmith, no new door, no drama.

    Watch the install video
  3. Step 03

    Live lighter

    Pair the TTLock app, enrol your fingerprints, share access on your terms. Alexa and Google Home work over built-in WiFi, or the WiFi Gateway.

What the SS Slim Series does Eight things it quietly gets right.

One lock, doing the work of a small pile of hardware. Watch it run through what it does, or pick a line to jump to it.

  1. SS304 stainless steel panel, die-cast alloy handle.

  2. Fingerprint, passcode, fob, app or key.

  3. An emergency key, and a low-battery alarm.

  4. Lock and unlock from anywhere: WiFi built in, or add the WiFi Gateway to the model without it.

  5. Timed eKeys and passcodes for guests or cleaners.

  6. Fits most handle-up multipoint doors, left or right.

  7. IP66-rated outside panel, against rain and dust.

  8. Bank-level 128-bit AES encryption, as on every Simpled lock.

Your door. In your hands.

Tap, schedule and share access. Simple.

  • Create and share PIN codes remotely
  • Create and share eKeys remotely
  • PIN code management
  • Add or delete cards
  • Battery level, volume and system updates
  • Bluetooth access
  • Wi-Fi access from anywhere
  • Time attendance
  • eKey management
  • Fingerprint management
  • Unlocking records

Remote access requires a compatible Wi-Fi connection or gateway.

Key specifications Nothing rounded up.

The exact figures behind the flagship, because a lock is a promise you should be able to check.

Weather
IP66

Dust-tight, rain-resistant outside panel.

Security
128-bit AES

Bank-level protection, as on every Simpled lock.

Fingerprints
200

Plus 150 passcodes & 200 fobs.

eKeys
Unlimited

Share phone access, and take it back, in a tap.

Fits doors
40–80 mm

Wood, aluminium or uPVC; a thicker door needs longer screws and stubs.

Power
8× AA

Low-battery alerts and a key backup.

Works in
−10°C–55°C

UK frosts and summer sun, on an outside door.

Warranty
24 months

Covers defects in materials and workmanship.

Bluetooth as standard · Alexa and Google Home through built-in WiFi or the WiFi Gateway

Before you buy Every worry, handled.

The questions everyone asks, answered plainly, because peace of mind starts before you buy.

Which app does it use?

<p>It's TTlock app. You can find it on both Google Play and App Store.</p>

What if I lose my key?

<p>For security purposes, our physical keys are designed unique to your lock ID, and we do not have spares of their respective physical keys. We recommend keeping a key with a trusted family member from the first day. The lock can still be unlocked via other means based on your lock model, i.e. smartphone unlock, fingerprints, pin codes, etc</p>

What if the batteries die, am I locked out?

<p>There are two solutions: Physical Keys Physical keys are provided together with Simpled smart locks, which ensures that you will still be able to enter the house mechanically even if its batteries run out. It is strongly recommended to keep at least one spare key on you or a family at all times for such situations. USB Input Also, when the physical key is not available, there is a USB input on the bottom part of the smart locks (besides the key input) that enables you to connect a power bank to wake up the lock and unlock it.</p>

Can someone guess my code?

<p>Simpled locks come with an imaginary PIN code feature that allows you to enter other digits before/after your actual PIN. This is optional but will help to deter hackers and prevent your PIN code from being exposed. Also, with the security lockout mode, it is even more difficult to guess your PIN code.</p>

Your question not here? Call +44 20 7096 0094 (Monday to Friday, 9am to 5pm) or send us a photo.

In good company

396 reviews of simpled.uk on Trustpilot. 4.8 out of 5.

4.8

out of 5

Excellent on Trustpilot · 396 reviews

  • 5 star81%
  • 4 star8%
  • 3 star2%
  • 2 star1%
  • 1 star7%

The newest of our own customer reviews, as written. Read them all

  • Great company that care. I used them on my first airBnB property and have now rolled them out to two more. The after sales service is what really stands out. Advice, spare parts, tech support all 100% ?

    Owen Werakso · January 2026
  • Very reliable and support is fantastic. They have everything in order and you can feel it in their service and aftermarket. Different and refreshing with great products, highly recommended.

    Elias Gadgets (Gary) · December 2025
  • Great smart lock. Absolutely brilliant after sales service.. I had some questions during installation. Simpled got back to me very quickly and talk me through it.

    foysol hussain · November 2025
  • A London company
  • 60-day money-back guarantee
  • 24-month warranty
  • AES encryption

SS vs EF Slim Series Two Slim locks. One clear flagship.

Both Slim locks open with a fingerprint, a code, a fob or your phone. The SS adds a built-in WiFi option and fits thicker doors.

Choose up to four to compare

Pick two to four locks. Tap one to add it or take it out; to add a fifth, take one out first.

Simpled models compared, up to four at a time. Each column is one model; prices are today's shop prices.
ModelFlagship
SS Slim Series Smart Lock - Black, with Wi-Fi
SSSS Slim Series Smart Lock - Black, with Wi-Fi
£349.99
Simpled EF Slim Series Smart Lock - Silver
EFSimpled EF Slim Series Smart Lock - Silver
£209.99In stock
Simpled WF-SP Weatherproof Slim Series Smart Lock
WFSimpled WF-SP Weatherproof Slim Series Smart Lock
£180.00For gates and narrow frames
Simpled DWF-SP Double-Side Weatherproof Smart Lock
DWFSimpled DWF-SP Double-Side Weatherproof Smart Lock
£255.99Weatherproof, smart on both sides
Simpled DFF-SP Double-Sided Smart Lock
DFFSimpled DFF-SP Double-Sided Smart Lock
£299.99Smart access on both sides
SF Slim Smart door lock - Matte Black
SFSF Slim Smart door lock - Matte Black
£249.99
TF Smart Lock (Our narrowest model - Ideal for bifold doors)
TFTF Smart Lock (Our narrowest model - Ideal for bifold doors)
£280.00Our narrowest, for bifold doors
Leverline Smart Fingerprint Door Handle - Matte Black
LFLeverline Smart Fingerprint Door Handle - Matte Black
£139.99In stock
Simpled GF Glass Door Lock
GFSimpled GF Glass Door Lock
£209.99Made for glass doors
MF Euro Motorised Cylinder (Fingerprint Keypad Included)
MFMF Euro Motorised Cylinder (Fingerprint Keypad Included)
£269.99The motorised upgrade
Simpled Night Latch Smart Lock RF-SP
RFSimpled Night Latch Smart Lock RF-SP
£164.99Smart access for night-latch doorsIn stock
Pricing & General
ColourBlackSilverSilverSilverSilverBlackBlackBlackBlackBlackSilver
Usage & Environment
Mostly used onMultipoint locks, Spindle LocksMultipoint locks, Spindle LocksSpindle LocksSpindle LocksMultipoint locks, Spindle LocksMultipoint locks, Spindle LocksMultipoint locks, Spindle LocksInternal doors, Office doors, Flat doors, Spindle LocksGlass door, Wooden doorEuro Cylinders, Multipoint locksEasy Night latch Replacement
External Weather ResistanceYesYesYesYesYesYesYesYesYesYesYes
Internal Weather ResistanceYesNoYesYesNoNoNoNoNoNoYes
Connectivity & Smart Ecosystem
Wi-Fi Bridge AvailabilityBuilt-in (No external gateway needed)External Gateway RequiredExternal Gateway RequiredExternal Gateway RequiredExternal Gateway RequiredExternal Gateway RequiredExternal Gateway RequiredExternal Gateway RequiredExternal Gateway RequiredExternal Gateway RequiredExternal Gateway Required
Unlock Remotely (With Gateway)YesYesYesYesYesYesYesYesYesYesYes
Alexa/Google Home (Gateway Sold Separately)YesYesYesYesYesYesYesYesYesYesYes
Access Methods
Smartphone AccessYesYesYesYesYesYesYesYesYesYesYes
Passcode AccessYesYesYesYesYesYesYesYesYesYesNo
Timed CodeYesYesYesYesYesYesYesYesYesYesNo
FingerprintYesYesYesYesYesYesYesYesYesYesYes
Card ReaderYesYesYesYesYesYesYesYesYesYesYes
Mechanical KeyYesYesYesYesYesYesYesYesYesYesYes
Access Management & Logs
Manage, Schedule, Share and Delete access in the appYesYesYesYesYesYesYesYesYesYesYes
Log RecordsYesYesYesYesYesYesYesYesYesYesYes
Installation & Warranty
Installation Time45m45m45m45m45m45m45m30m45m30mLess than 5
Installation Difficulty LevelMediumMediumMediumMediumMediumMediumMediumEasyMediumEasyEasy
Simpled Warranty2 years2 years2 years2 years2 years2 years2 years2 years2 years2 years2 years

2 of 4 selected

Both carry the 60-day money-back guarantee and the 24-month warranty. See the full range side by side

FAQ

Asked about this product

Why should I buy an electronic door lock?

<p>A: We would like to counter-question some of your experiences with your own door locks. Do you remember a time when you forgot your keys and was locked out of your home? What happens when you arrive home late and depend on someone (parents/maid) in the house to open the door for you? Do you wake them up? You invited your best friends/family members to your house, but you were running late, and they are already at your gate. Wouldn’t it be nice if they can enter your home instead of waiting aimlessly outside? Have any of your belongings been scratched/damaged through keys in the same bag/pocket? If you have experienced the above scenarios, it may be time you installed an electronic door lock. With an electronic door lock, you will be able to open your gates without using keys (fingerprint/RFID tag/pin codes and even your smartphone).</p>

What type of doors can a digital lock be fitted on?

<p>Simpled smart locks can be installed on most main doors and gates Materials such as wooden, metal, plastic, sliding doors and glass You can send your existing door/gate photos for further assistance to our support team at support@simpled.tech</p>

My batteries have completely run out. What can I do?

<p>There are two solutions: Physical Keys Physical keys are provided together with Simpled smart locks, which ensures that you will still be able to enter the house mechanically even if its batteries run out. It is strongly recommended to keep at least one spare key on you or a family at all times for such situations. USB Input Also, when the physical key is not available, there is a USB input on the bottom part of the smart locks (besides the key input) that enables you to connect a power bank to wake up the lock and unlock it.</p>

The touchscreen of the lock seems reflective. Can fingerprints be left on the lock, making it easy to guess the password?

<p>Simpled locks come with an imaginary PIN code feature that allows you to enter other digits before/after your actual PIN. This is optional but will help to deter hackers and prevent your PIN code from being exposed. Also, with the security lockout mode, it is even more difficult to guess your PIN code.</p>

What happens if I lose my physical key?

<p>For security purposes, our physical keys are designed unique to your lock ID, and we do not have spares of their respective physical keys. We recommend keeping a key with a trusted family member from the first day. The lock can still be unlocked via other means based on your lock model, i.e. smartphone unlock, fingerprints, pin codes, etc</p>

Where can I find the user manual?

<p>The user manual is available at Support > Downloads from our website</p>

Which door lock is suitable for my usage?

<p>Type of Door Locks This is really down to your personal preference. Typically, most models come with pin code and biometric or pin code and RFID access, except for the Leo Max smart lock, which incorporated all 3 elements (Face and Palm Recognition, pin code and RFID access).</p>

What is the warranty period for Simpled smart door locks?

<p>All product(s) sold by simpled.tech or our authorised dealers come with a 24-month local warranty to the original purchaser Valid from the date of purchase</p>

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Fitting it yourself

Installation Videos

Watch the fit before you start.

  • Simpled SS Installation Video

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Accessories picked to go with the SS Slim Series Smart Lock.

Simpled SS Slim Series

Come and go. Never worry.

Sixty seconds tells you if it fits. Sixty days tells you if it's right. Two years, we've already promised.

  • Rated Excellent, 4.8/5 on Trustpilot