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| Feature | Nuki Smart Lock Ultra | Wyze Auto-Lock Bolt v2 | Winner |
|---|---|---|---|
| Weather Resistance | NO | IP53 | Wyze Auto-Lock Bolt v2 |
| Battery Life | 6 months | 8 months | Wyze Auto-Lock Bolt v2 |
| Connectivity | 2.4 GHz WiFi, Bluetooth, Thread Protocol | 2.4 GHz WiFi | Nuki Smart Lock Ultra |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Alexa | Nuki Smart Lock Ultra |
| Anti-peep Password | NO | YES | Wyze Auto-Lock Bolt v2 |
| Rating | 4.5 | 4.5 | Tie |
| Lock/Unlock System | Remote, Bluetooth, Passcode, Fingerprint, Physical Key | Remote, Passcode, Fingerprint, Physical Key | Tie |
| Emergency Fingerprint | NO | NO | Tie |
| Doorbell | NO | NO | Tie |
What the differences mean
Which door it fits
The Nuki Smart Lock Ultra mounts on a European cylinder and is not a US deadbolt. The Wyze Auto-Lock Bolt v2 replaces a standard deadbolt and keeps a mechanical key. Buying the Ultra for a North American bore, or the Wyze for a euro cylinder, is the mismatch this pair exists to prevent. Check the door before the feature list.
Weather and the keypad
The Wyze Auto-Lock Bolt v2 is IP53 and puts fingerprint, an anti-peep keypad and a key on the lock itself. The Nuki Smart Lock Ultra is not weather rated. Passcode needs Nuki's keypad accessory and fingerprint needs the Keypad 2, and anti-peep entry is marked not supported. An exposed US door is a Wyze case. A dry European door can still be a Nuki case.
Platforms
The Nuki Smart Lock Ultra lists 2.4 GHz Wi-Fi, Bluetooth and Matter over Thread, with Apple Home, Google, Alexa, SmartThings and Home Assistant, plus geolocation auto-unlock. The Wyze Auto-Lock Bolt v2 lists built-in 2.4 GHz Wi-Fi and Alexa. Google and Home Assistant on the Wyze are not documented, and Apple Home and Matter are marked not supported. The wider smart-home list is the Nuki one, on the door it actually fits.
Power
The Wyze Auto-Lock Bolt v2 runs on 8 AA cells, rated about 8 months, with a USB-C emergency port. The Nuki Smart Lock Ultra uses a built-in rechargeable pack rated about 6 months and lists no separate backup supply. Remote access is included on both, over each lock's own Wi-Fi.
Which one to buy if
- the door is a standard US deadbolt
The Wyze Auto-Lock Bolt v2 replaces that deadbolt. The Nuki Smart Lock Ultra is a European-cylinder retrofit and is not sold as a US deadbolt.
- the door is a European cylinder and you want Matter
The Nuki Smart Lock Ultra brings Matter over Thread plus Apple Home, Google, Alexa, SmartThings and Home Assistant.
- fingerprint has to be built into the lock
The Wyze Auto-Lock Bolt v2 includes a fingerprint reader. On the Nuki Smart Lock Ultra that reader is a separate keypad accessory.
- a US door sees rain
The Wyze Auto-Lock Bolt v2 is IP53. The Nuki Smart Lock Ultra is not weather rated, and it does not fit that door anyway.
- + Connectivity: 2.4 GHz WiFi, Bluetooth, Thread Protocol
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Weather Resistance: NO vs IP53
- - Battery Life: 6 months vs 8 months
- + Weather Resistance: IP53
- + Battery Life: 8 months
- + Anti-peep Password: YES
- - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Bluetooth, Thread Protocol
- - Integrations: Alexa vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
What owners say
Owners are fitting different doors, and they say so. Nuki Smart Lock Ultra owners, including people who already owned older Nuki locks, talk about a faster, more compact feel, a guided install they finish in about an hour, and a Matter code that drops the lock into Apple Home. They still call cylinder length the fiddly step, and they note that a keypad is a separate piece. Wyze Auto-Lock Bolt v2 owners single out a fingerprint reader that learns and opens in about a second, an install they often finish in minutes, and a USB-C port they trust more than a 9V terminal. They complain that the body is bulky, that Wi-Fi wants 2.4 GHz only, and that some older fingers are hard to enroll.
Frequently Asked Questions
Which is better overall: Nuki Smart Lock Ultra or Wyze Auto-Lock Bolt v2?
The Wyze Auto-Lock Bolt v2, for a US deadbolt. It adds IP53 sealing, a built-in fingerprint reader, an anti-peep keypad and about 8 months on AA cells. The Nuki Smart Lock Ultra is the European-cylinder lock, with Matter over Thread and the wider platform list, and it is not weather rated.
What is the biggest difference between the Nuki Smart Lock Ultra and the Wyze Auto-Lock Bolt v2?
The door. The Nuki Smart Lock Ultra retrofits a European cylinder and is not a US deadbolt. The Wyze Auto-Lock Bolt v2 replaces a standard deadbolt, with fingerprint and keypad on the lock and an IP53 rating.
Does the Nuki Smart Lock Ultra have a fingerprint reader?
Not built in. Fingerprint needs the Keypad 2 accessory, and a passcode needs the keypad accessory. The Wyze Auto-Lock Bolt v2 includes fingerprint, keypad and a physical key on the lock itself.
Which smart home platforms do they support?
The Nuki Smart Lock Ultra supports Apple Home, Google, Alexa, SmartThings, Home Assistant and Matter over Thread. The Wyze Auto-Lock Bolt v2 supports Alexa. Google and Home Assistant on the Wyze are not documented, and Apple Home and Matter are marked not supported.
Who should buy the Wyze Auto-Lock Bolt v2?
Anyone replacing a US deadbolt who wants fingerprint entry, an anti-peep keypad, built-in Wi-Fi and an IP53 rating, especially inside the Wyze app.
Who should buy the Nuki Smart Lock Ultra?
Owners of a European cylinder who want Matter, Apple Home, Google and geolocation auto-unlock, and who can add a keypad later if they need a code on the door.
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