ThorBolt GK1 Is a Verify-Before-Buy Interior Lock
The most important detail in ThorBolt's new GK1 listing is not Thread or its $79.99 price. It is a contradiction.
The Amazon title calls the GK1 a fingerprint door knob “without keypad.” The same page's feature bullets repeatedly mention keypad and passcode behavior. Independent launch reporting says there is no keypad. Until ThorBolt publishes a corrected product page and manual, buyers should treat the GK1 as a fingerprint-first, Apple-only interior lock—not a keypad lock.
What the Evidence Actually Supports
The live listing identifies four entry methods: fingerprint, Siri or app control, and a physical key. It says the Sleekpoint app can manage up to 50 fingerprints, show activity history, change auto-lock timing, adjust feedback sounds, and install firmware updates.
HomeKit News also describes a three-position switch on the lock:
- Passage Mode keeps the door unlocked. - Admin-Only Mode limits fingerprint access to administrators. - Standard Mode allows enrolled administrators and users.
Those are useful controls for a home office, bedroom, or shared interior space. They do not create a numeric passcode method without a keypad. Anyone who needs codes for cleaners, guests, or short-term access should wait for ThorBolt or the seller to confirm the exact hardware and correct the listing in writing.
HomeKit over Thread Is Not Matter over Thread
The GK1 is listed as iOS only and uses native HomeKit over Thread. That can suit an Apple Home household, but it is not evidence of Matter support or compatibility with Google Home, Alexa, SmartThings, or Home Assistant.
The network requirement matters too. Apple says automations, notifications, and remote control for Thread accessories require a compatible Thread-enabled home hub or border router. Its current list includes HomePod mini, HomePod (2nd generation), Apple TV 4K (2nd generation), and the Wi-Fi + Ethernet version of Apple TV 4K (3rd generation).
Before ordering, open Apple Home's Home Settings, check Home Hubs & Bridges, and confirm that a compatible hub is powered and placed within a reliable Thread range of the door.
Measure the Door Before Buying
The listing says the GK1 fits doors 35–57 mm thick and supports 60 or 70 mm backsets. Measure both instead of assuming that “standard U.S. door” guarantees a fit.
Power comes from four AAA alkaline batteries. The one-year battery figure is a manufacturer estimate, not an independent result. Two physical keys and a USB-C emergency-power port provide recovery options, but test both before relying on auto-lock. Keep a backup key somewhere accessible outside the locked room.
HomeKit News says ThorBolt has not published an IP rating. That reinforces the interior-use label: do not treat the GK1 as a weather-rated exterior security lock merely because marketing calls it splashproof.
The Buying Decision
Buy the GK1 only if all of these are true:
- Fingerprint, Siri/app, and physical-key entry cover the real access plan. - The household is committed to Apple Home rather than cross-platform Matter control. - A compatible Thread-enabled Apple home hub is already available. - The door matches the stated thickness and backset. - An interior, non-weather-rated knob is appropriate for the location.
Wait if a keypad, scheduled passcodes, Matter, Apple Home Key, exterior weather resistance, or independently tested battery life is essential.
The GK1 may become a useful $79.99 interior lock. Right now, its hardware idea is clearer than its sales copy. Verify the missing keypad, ecosystem boundary, door fit, and recovery plan before buying.
- https://www.amazon.com/gp/aw/d/B0GQ9P68ZJ - https://support.apple.com/en-ie/102078 - https://homekitnews.com/2026/07/27/thorbolt-launches-gk1-smart-door-knob-w-homekit-over-thread/ - https://thorbolt.co/collections/all