The TCL D2 Pro Palm‑Vein Smart Lock
Imagine unlocking your front door simply by holding your palm up, echoing Iron Man’s repulsor blast. The TCL D2 Pro does just that, leveraging AI‑powered palm‑vein recognition for a quick, touchless entry.
Why palm‑vein beats other biometrics
- Unmatched accuracy: TCL claims 99.9999% reliability.
- Speed: Unlocks in 0.3 seconds.
- Hygiene: No touch, no contamination.
- Resilience: Works regardless of moisture, dirt, or a forgotten code.
Unlocking flexibility
The D2 Pro supports multiple access methods, ensuring you never get locked out:
- Keypad entry
- Key fob or physical key
- Voice commands via Amazon Alexa or Google Assistant
- TCL Home Security app
Local data storage for privacy
All biometric data and logs reside on the device itself, eliminating cloud‑based exposure risks.
Long‑lasting battery life
A 10,000 mAh rechargeable battery, charging through a USB‑C port, can last up to 10 months (or 240 days in some tests), giving you peace of mind without frequent recharging.
Smart‑home integration
With 2.4 GHz Wi‑Fi, you can access the lock remotely, receive real‑time notifications, and manage users through the app. Features include temporary access codes and detailed activity logs.
Durability in harsh climates
- IP55 waterproof and dustproof rating
- Operates between –25 °C and 70 °C
Built‑in doorbell for visitor convenience
Visitors can ring the doorbell directly from the lock, adding an extra layer of ease for guests.
TL;DR – The TCL D2 Pro offers a touchless, high‑accuracy unlock with flexible methods, local privacy, 10‑month battery life, smart‑home integration, and rugged durability.

TCL D2 Pro: The Smart Lock That Keeps Unlocking
The TCL D2 Pro stands at the heart of TCL’s D2 Smart Lock family, a trio that has pushed the brand into the spotlight of the lock‑market.
D2 Series – A Choice of Convenience
- D2 Pro – Raised a fingerprint alarm for $169.99, but during sales such as Prime Day it towers at $135.99.
- D2 Plus – Fingerprint built‑in, runs for eight months on AA batteries, priced at $119.99.
- D2 Base – Pure keypad version, wallet‑friendly $79.99.
Growth From a Proven Legacy
The D2 Pro is not the first star on the TCL D2 banner. Its predecessor, the D1 Pro, scooped Best of CES accolades and claimed Amazon’s top spot for models over $150. The D2 Pro builds on that heritage, adding new features while sticking to the brand’s recognized reliability.
What Digital Trends Says
Digital Trends has yet to run the D2 Pro through a comprehensive review. Still, the lock has earned praise and is frequently highlighted in our Best Smart Locks of 2025 roundup, showcasing its place among the top contenders.
