Lockin Veno Solar Palm vs Veno Solar Face comes down first to how you want to unlock your door: Veno Solar Palm centers on Venokey™ Palm Vein Unlock, while Veno Solar Face centers on 3D Face Recognition Unlock. Both are Lockin Veno Solar smart locks with ABX3™ Perovskite Solar Self-Charging, but solar-assisted charging should be understood as support for reducing charging hassle—not as battery-free operation.

Quick answer: the main difference is palm unlock vs face unlock

Start the comparison with the people who will use the door, not the solar label shared by the candidates. Identify whether each regular resident prefers presenting a palm or using a face-oriented interaction, then check the matching instructions for posture and positioning. Include the alternative credential that person can use comfortably when the preferred method is inconvenient. This turns the feature difference into a practical household question without assuming that a biometric preference predicts performance for every person or situation.

Both models sit within Lockin’s broader Veno Solar line, so the comparison is narrower than choosing between entirely different product categories. You are mainly deciding between palm vein recognition and 3D face recognition while keeping the same solar-assisted smart-lock concept.

What Veno Solar Palm and Veno Solar Face have in common

Veno Solar Palm and Veno Solar Face share several confirmed product facts that matter for home buyers. Both include ABX3™ Perovskite Solar Self-Charging, which uses light to help reduce everyday charging burden. Both include a battery, 5 unlock methods, Built-in Wi-Fi with no hub required, Matter compatibility with Apple Home, Alexa, Google Home, and SmartThings, Auto-Lock, IP53, ANSI Grade 3, an operating temperature range of -22°F to 158°F, and USB-C emergency power.

The Solar Palm/Face manual separately requires an operational Matter-over-Thread certified hub for Apple Home and SmartThings. Keep native Wi-Fi access separate from ecosystem commissioning; the broad no-hub wording does not settle the controller needed for that platform.

• Do you want a smart lock that can work with common smart-home ecosystems through Matter compatibility?
• Which functions will use native Wi-Fi, and which require the compatible Matter-over-Thread hub described for your platform?
• Do you want Auto-Lock as part of the daily entry routine?
• Is the confirmed IP53 rating appropriate for your door’s exposure, porch coverage, and local conditions?
• Do you have a plan for USB-C emergency power if the battery becomes critically low?

Keep the comparison within what the model-specific documentation establishes. Do not infer additional recognition, storage or security behavior from the biometric name, and do not turn a feature description into an independent performance test. When a particular capability is essential, identify the exact claim and ask for the applicable product evidence. That approach leaves the purchase focused on a documented entry method and the resident’s needs rather than allowing an unlisted technical assumption to decide between the candidates.

Before ordering, confirm the selected model, included accessories and installation guide. Shared charging features do not establish that accessories or setup procedures are interchangeable.

Solar-assisted charging: helpful support, not battery-free operation

The most important power expectation is this: Veno Solar Palm and Veno Solar Face are solar-assisted smart locks, not battery-free devices. The provided product facts confirm that both models include ABX3™ Perovskite Solar Self-Charging and a 37Wh 7.4V 5000mAh battery. In other words, the solar system supports the battery; it does not remove the battery from the product.

Assess solar assistance at the actual doorway after choosing a plausible entry method. Observe persistent shade and the panel position, compare the installation guidance and keep the documented charging routine available. A shared solar feature does not prove that either model will replenish enough power at a covered or poorly lit entrance. Use the battery indication during ordinary operation to guide maintenance and treat a favorable entry-method trial as separate from the power conditions that must also be satisfied.

This is the safest expectation for a household purchase: treat the solar feature as a charging-support system that can reduce charging hassle, not as a reason to ignore power planning altogether.

What happens at night, in winter, or on cloudy days

At night or whenever usable light is unavailable, the lock relies on stored battery power. Cloudy weather does not establish that solar replenishment will keep pace with household use; retain the normal charging and recovery plan.

In winter, the same conservative logic applies. The official product facts list an operating temperature range of -22°F to 158°F for both models, but that does not replace the need to consider available daylight and exposure. Shorter days, shaded entries, storms, and covered porches may reduce available light. If your entry receives very little light for long periods, plan to monitor battery status more closely and understand the emergency-power option before installation.

How to choose the better fit for your household

Choose Veno Solar Palm if the hand-based interaction feels more natural for your household. Its confirmed differentiator is Venokey™ Palm Vein Unlock at 0.17s. This may appeal to buyers who prefer a clear, intentional unlock gesture rather than face-based recognition. It can also be easier to explain to household members: approach the door and use your palm.

Choose Veno Solar Face if face-based entry is the interaction you prefer. Its confirmed differentiator is 3D Face Recognition Unlock under 1s with over 99% accuracy, and the provided product facts include a supported user height range of 3 ft 11 in to 6 ft 7 in. For buyers who like face recognition as a primary unlock method, Veno Solar Face is the model built around that experience.

The better fit depends on household habits more than on a universal ranking. Consider these questions:

• Can each regular user repeat the documented palm or face presentation comfortably?
• Which supported credential will visitors use without biometric enrollment?
• What accessible alternative will each resident use if recognition is unsuccessful?

Use the Solar Palm/Face manual to verify the posture and presentation needed by the intended user. Keep the palm or face unobstructed as instructed and account for the guide’s warning about intense light at the recognition window. Try the ordinary approach under appropriate supervision with a working fallback available, then record any difficulty that remains. If the required gesture or position is uncomfortable, reconsider the method or seek model-specific guidance rather than assuming that familiarity will resolve every mismatch.

Choose a candidate only when the resident’s entry routine and the doorway requirements are compatible. Confirm physical fit, surrounding clearance, installation permission where relevant, usable light and the household’s maintenance responsibility, then check the exact option being ordered. A problem in any required condition should lead to clarification or another arrangement rather than another repetition of the feature comparison. The purpose is to select a practical entrance system, not to name a universal winner from a preferred recognition gesture.

Backup power and low-battery planning

Both Veno Solar Palm and Veno Solar Face include a 37Wh 7.4V 5000mAh battery and USB-C emergency power in the provided product facts. That matters because solar assistance does not remove the need for a backup plan.

If the battery becomes critically low, USB-C emergency power is the confirmed backup-power option provided for these two models. Buyers should understand where the emergency power port is, what type of USB-C power source is appropriate according to official Lockin instructions, and how to access the port before the lock is installed on a daily-use door.

The Solar Palm/Face manual and FAQ document a mechanical-key fallback behind the front solar panel. Press the panel’s side release button, gently lift the released panel upward and pull it outward to expose the cylinder. Keep the correct key accessible to an authorized person outside the locked home and follow the matching key-operation instructions.

Prepare the low-power and depleted-power procedures before relying on the selected lock. Identify who will monitor the indication, how normal charging is performed and where the authorized user can obtain the documented mechanical or emergency-power fallback. Keep those roles distinct: recovering entry after depletion is not the everyday charging plan. If the household cannot carry out the maintenance or obtain assistance when needed, address that issue before assuming the biometric choice has settled the installation decision.

Buyer checklist before you choose

1. Pick your preferred unlock interaction

• Choose Veno Solar Palm for a palm-based experience using Venokey™ Palm Vein Unlock.
• Choose Veno Solar Face for a face-based experience using 3D Face Recognition Unlock.
• Avoid choosing solely by headline feature; think about who will use the door every day.

2. Check the light environment

• Confirm whether the lock area gets direct light, indirect light, or mostly shade.
• Consider winter daylight, cloudy seasons, porch roofs and recessed entries. Solar Palm/Face exclude storm-door installations, and Lockin does not recommend solar charging at apartment or condo entries without daylight.
• Remember that solar-assisted charging supports the battery; it does not make power planning irrelevant.

3. Verify installation fit

• Check door compatibility on the latest official Lockin product page or support materials.
• For rentals, confirm lease terms, landlord permission, and local requirements before replacing or modifying a lock.
• Do not assume every door is compatible without checking current installation guidance.

4. Review smart-home needs

• Both models list Matter compatibility with Apple Home, Alexa, Google Home, and SmartThings in the provided facts.
• Both list Built-in Wi-Fi with no hub required.
• Confirm current platform details before purchase if smart-home integration is a deciding factor.

5. Confirm ratings and exposure

• The provided facts list IP53 and ANSI Grade 3 for both models.
• Verify the latest rating language and outdoor/weather guidance on the current official product page.
• Do not assume IP53 means the lock is suitable for every exposed outdoor condition.

6. Plan for backup power

• Both models include USB-C emergency power in the provided facts.
• Confirm official low-battery and emergency-power instructions before installation.
• Keep battery monitoring in your routine, especially if the door receives limited light.

7. Recheck current product details

• Confirm current official product URLs, availability, package contents, and pricing before buying.
• Do not rely on outdated screenshots or third-party marketplace summaries for final purchase decisions.
• If a spec is essential to your decision, verify it with Lockin directly.

FAQ

Is the main difference between Veno Solar Palm and Veno Solar Face the biometric method?

Yes. Based on the provided Lockin product facts, the most important buyer-facing difference is that Veno Solar Palm centers on Venokey™ Palm Vein Unlock, while Veno Solar Face centers on 3D Face Recognition Unlock. Many other confirmed features are shared across both Veno Solar models.

Are Veno Solar Palm and Veno Solar Face battery-free?

No. Both models include a confirmed 37Wh 7.4V 5000mAh battery. Their ABX3™ Perovskite Solar Self-Charging is best understood as solar-assisted charging that helps reduce everyday charging burden, not as operation without a battery.

Does Veno Solar Face work for every height?

The provided product facts list a supported user height range of 3 ft 11 in to 6 ft 7 in for Veno Solar Face. If household members fall outside that range, or if the lock position is unusual, confirm fit with Lockin before purchasing.