Door Locks · Head to head

Nuki Smart Lock Ultra vs TP-Link Tapo DL100

Full Smart Door Locks comparison in 2026

Updated September 2026
Data from Amazon and official Nuki and TP-Link sites.
2026 verdict
For a straightforward door, TP-Link Tapo DL100 is the more sensible purchase, arriving as a complete deadbolt with a backlit keypad for up to 200 codes, one-time guest codes, anti-peep entry between random digits, a doorbell ring button, an IP54 exterior, ten months on four AA batteries and built-in Wi-Fi and Bluetooth, at a small fraction of the Nuki's price. Nuki Smart Lock Ultra is the flagship European retrofit and the more refined machine, faster and more compact than earlier Nuki generations, with built-in Wi-Fi and Matter over Thread so remote and smart-home access work with no add-ons, a rechargeable battery, hands-free auto-unlock with geolocation, Apple HomeKit, Google, Alexa, SmartThings and Home Assistant support, and a guided install that adapts to UK, US and EU door thicknesses. It still has no keypad, fingerprint, NFC or Home Key on the lock itself, and no weather rating. Buy Nuki Smart Lock Ultra for a European cylinder and a Matter home; buy TP-Link Tapo DL100 when you want every entry method included at an entry price.
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FeatureNuki Smart Lock UltraTP-Link Tapo DL100Winner
Weather ResistanceNOIP54TP-Link Tapo DL100
Battery Life6 months10 monthsTP-Link Tapo DL100
Connectivity2.4 GHz WiFi, Bluetooth, Thread Protocol2.4 GHz WiFi, BluetoothNuki Smart Lock Ultra
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Samsung SmartThingsNuki Smart Lock Ultra
Lock/Unlock SystemRemote, Bluetooth, Passcode, Fingerprint, Physical KeyRemote, Bluetooth, Passcode, Physical KeyNuki Smart Lock Ultra
One-Time PasswordKeypad requiredYESTP-Link Tapo DL100
Periodic PasswordKeypad requiredNONuki Smart Lock Ultra
Anti-peep PasswordNOYESTP-Link Tapo DL100
DoorbellNOYESTP-Link Tapo DL100
Rating4.54.5Tie
Emergency FingerprintNONOTie
Price unavailable right now
  • + Connectivity: 2.4 GHz WiFi, Bluetooth, Thread Protocol
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • + Lock/Unlock System: Remote, Bluetooth, Passcode, Fingerprint, Physical Key
  • - Weather Resistance: NO vs IP54
  • - Battery Life: 6 months vs 10 months
Winner
14% OFF
$59.99
$69.99
  • + Weather Resistance: IP54
  • + Battery Life: 10 months
  • + One-Time Password: YES
  • - Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, Bluetooth, Thread Protocol
  • - Integrations: Google Home, Alexa, Samsung SmartThings vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Frequently Asked Questions

Which is better overall, the TP-Link Tapo DL100 or the Nuki Smart Lock Ultra?

TP-Link Tapo DL100 on value and completeness: keypad with up to 200 codes, one-time codes, anti-peep entry, a doorbell button, IP54 protection and ten months of AA battery life. Nuki Smart Lock Ultra wins on integrations, adding Apple HomeKit and Matter over Thread, and on retrofit installation.

Which doors do they suit?

Nuki Smart Lock Ultra retrofits over a European cylinder, keeping your existing key, and its guided install adapts to UK, US and EU door thicknesses. TP-Link Tapo DL100 replaces a standard deadbolt and fits 54 mm and 38 mm lock bores without extra drilling.

How do you unlock each one?

TP-Link Tapo DL100 offers a backlit keypad, Bluetooth, the app and two mechanical keys. Nuki Smart Lock Ultra unlocks from the app, by Bluetooth, hands-free on approach with geolocation, or with your existing key, and it needs a Nuki keypad accessory for codes or fingerprint.

Do either need a subscription or add-on?

No. Nuki Smart Lock Ultra includes Wi-Fi and Matter, so remote access works without the paid add-on the cheaper Nuki Go needs. TP-Link Tapo DL100 also works remotely over its own Wi-Fi with no hub, no bridge and no subscription.

Which works with Apple Home?

Only Nuki Smart Lock Ultra, through Matter over Thread with an easy Apple Home QR setup, plus Google, Alexa, SmartThings and Home Assistant. TP-Link Tapo DL100 covers Alexa, Google Home and SmartThings with PIN verification, and has no Apple HomeKit or Matter.

Who should buy the Nuki Smart Lock Ultra?

Owners of European cylinder doors who want Nuki's fastest and most compact lock, built-in Wi-Fi and Matter with no add-ons, hands-free unlocking and a 2 year warranty. For a self-contained keypad deadbolt on a US-style door, TP-Link Tapo DL100 is far cheaper and better equipped.

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