Directory/Smart Locks/DESLOC Fingerprint WiFi Smart Lock K120 Handle Set, 16 Month Last Battery | Rechargeable Keyless Entry Front Door Lock 15000mAh, APP Control, IP65, BHMA Grade3, 3D GPT Recognition, Auto lock, Black
DESLOC Fingerprint WiFi Smart Lock K120 Handle Set, 16 Month Last Battery | Rechargeable Keyless Entry Front Door Lock 15000mAh, APP Control, IP65, BHMA Grade3, 3D GPT Recognition, Auto lock, Black
DESLOC · Smart Locks

DESLOC Fingerprint WiFi Smart Lock K120 Handle Set, 16 Month Last Battery | Rechargeable Keyless Entry Front Door Lock 15000mAh, APP Control, IP65, BHMA Grade3, 3D GPT Recognition, Auto lock, Black

6.4/ 10
Testwise score
Confidence: MEDIUM · scored on full spec sheet

"A feature-rich smart lock built around a giant battery, but with entry-level security certification."

$189.99
at Amazon · price checked today
See it at Amazon
The catch
It's certified to the lowest residential security grade (BHMA Grade 3), prioritizing electronic features over physical brute-force resistance.
The breakdown
4 axes, scored the same way across every smart locks we log.
Security Truth4.0
Reliability6.0
Battery & Ecosystem6.5
Price Honesty7.0
Spec, translated

The 15,000mAh battery is unusually large because it needs to be; powering a direct-to-WiFi radio is far more draining than the hub-based systems used by competitors. Expect to recharge a few times per year, not once every '16 months'.

Lab notes
The observations that actually change the buying decision.
01
The core of this product is a massive 15,000mAh Li-ion battery, but it's tasked with powering a power-hungry direct WiFi radio. The 16-month life claim is a best-case, low-usage theoretical maximum, not a real-world expectation.
02
BHMA Grade 3 is the lowest residential security certification. It meets minimum standards but is tested to half the cycle durability and lower force-resistance than the Grade 2 standard common at this price point.
03
The 'GPT 3D Fingerprint' branding is pure marketing co-opting an unrelated AI term. It's a modern capacitive sensor that learns, which is standard, but the name is meaningless. The key positive is that data is stored locally.
04
Using a proprietary rechargeable battery pack creates long-term dependency. When the battery inevitably degrades after a few years, your only source for a replacement is DESLOC, assuming they still exist and support this model.

Why you should buy

This lock is for a rental property manager or homeowner who values remote access management and multiple entry methods above all else. Its feature set is strong for the price, if you accept the trade-offs on physical robustness. It's also suitable for a low-security interior door, like a home office.

Why you should skip

Anyone for whom physical, brute-force security is the primary concern should look for a lock with a BHMA Grade 2 or 1 rating. Users who prefer the universal availability of standard AA batteries over a proprietary rechargeable pack will find this model's ecosystem restrictive.

What buyers actually say
Themes pulled from real owner reviews, not marketing copy.

Pros

  • Direct WiFi control without needing a separate hub.
  • Unusually large battery capacity for its class.
  • Multiple unlock methods (fingerprint, app, code, key).
  • IP65 rating provides solid weather resistance.
  • Fingerprint data is stored locally for privacy.

Cons

  • Features the lowest residential security rating (BHMA Grade 3).
  • Proprietary battery creates future replacement dependency.
  • 16-month battery claim is optimistic for a WiFi lock.
  • Unknown brand with no track record for long-term support.
  • Durability rating of 100,000 cycles is entry-level.
Full specifications
Source: manufacturer + retail catalog · synced today.
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DESLOC DESLOC Fingerprint WiFi Smart Lock K120 Handle Set, 16 Month Last Battery | Rechargeable Keyless Entry Front Door Lock 15000mAh, APP Control, IP65, BHMA Grade3, 3D GPT Recognition, Auto lock, BlackPENDING · Smart Locks
$189.99See it at Amazon