EZVIZ DL20FVS Smart Lock Review 2026: Face+Palm Vein at ¥1,378

The EZVIZ DL20FVS is the ¥949-1,378 smart lock that answers the question Chinese buyers ask most in the 1,000-1,500 yuan tier: does Hikvision’s security arm — the company behind China’s most-installed surveillance cameras — deliver a smarter, more reliable smart lock than the Kaadas, Loock and Desman models we’ve covered, and is the face-plus-palm-vein combo worth it over fingerprint-only locks? On JD self-operated the DL20FVS has hit ¥1,378 (a ¥1,520 list price with a ¥142 coupon, flagged by SMZDM on Aug 11 as below its usual price on a listing carrying a 99% positive rate) and ¥1,615.11 for the Y3000FVP Plus; on Tmall the DL20FVS has been ¥1,049 with the national subsidy and category-ranking badge (¥1,599 list, ¥550 off) and the DL20F at ¥1,049; on Pinduoduo the 100-billion-subsidy program has taken it to ¥949. The hardware: 3D face recognition that works in low light, palm-vein and fingerprint as alternate biometrics, a large-screen video doorbell with remote unlock from the EZVIZ app, a heavy-duty king-pin lock body (ba wang lock body, the reinforced anti-pry standard), and the Hikvision security ecosystem that connects the lock to EZVIZ cameras and doorbell sensors. Xiaohongshu’s 695-like “DL20FVS experience” thread, the 222-like “the semi-automatic smart lock ceiling” thread, the 210-like “DL20FVS visual door lock” thread and the 196-like “4 hot EZVIZ models tested” thread are the buy signals; the 143-like “returned the Desman, bought the EZVIZ Y5000FVS” thread is the strongest cross-brand signal; the 29-like “DL20FVS battery drain real-world test” thread and the 2-like “avoid EZVIZ” threads are the recurring caveats; SMZDM’s deal-page commenter who inspected the lock in a store calls the handle “very refined craftsmanship — fingerprint, face, palm vein, multiple unlock methods, plus an electronic cat-eye.” Conclusion: ✅ Best value security-brand smart lock with face+palm vein at the ¥1,049-1,378 deal price, especially for buyers who already trust Hikvision/EZVIZ cameras; ⚠️ skip if battery-drain paranoia will keep you up or if you want a fully automatic (motorized) lock body — the DL20FVS is semi-automatic.

Specifications

Specification	Detail
Model	EZVIZ DL20FVS
Biometrics	3D face + palm vein + fingerprint + PIN
Doorbell	Large-screen video cat-eye, remote unlock via app
Lock body	Heavy-duty king-pin (reinforced anti-pry standard)
Type	Semi-automatic
Ecosystem	Hikvision/EZVIZ app, camera & sensor integration
Platform	JD self-operated / Tmall / Pinduoduo 100B subsidy
Price (2026-08)	¥949-1,378; deal lows ¥949 (PDD), ¥1,049 (Tmall), ¥1,378 (JD)

— the DL20FVS in the finish SMZDM’s deal posts reference most; the large-screen video doorbell and the king-pin lock body are the two details that dominate the discussion threads.

Hikvision’s Security DNA: Why It Matters

EZVIZ is Hikvision’s consumer smart-home brand, and that lineage is the DL20FVS’s strongest asset. Hikvision is China’s dominant surveillance-equipment maker, which means three things for a smart lock: the camera module (the video doorbell’s image quality, night vision and two-way audio) is built by a company that lives and breathes imaging; the cloud and app infrastructure (EZVIZ app, remote unlock, video playback) is production-grade rather than startup-grade; and the security posture — encrypted communication, secure unlock protocols — is treated as core engineering, not a feature checkbox. That’s the positioning Xiaohongshu’s 222-like “the semi-automatic smart lock ceiling” thread and the 695-like “DL20FVS experience” thread are responding to: buyers who trust the Hikvision brand for cameras are transferring that trust to the lock.

The DL20FVS’s biometrics stack is also unusually complete for the tier: 3D face recognition (structured-light, works in the dark — the camera-based approach, not the cheaper 2D image comparison), palm vein as the flagship biometric (vein patterns are internal, hard to spoof), fingerprint for speed, and PIN as backup. The SMZDM commenter who saw the lock in-store confirms the practical impression: “fingerprint, face, palm vein, multiple unlock methods, plus an electronic cat-eye.”

The video doorbell is the second differentiator: a large screen on the interior side shows the visitor, the exterior camera streams to the app, and remote unlock lets you open for a delivery person or guest from anywhere. For a ¥1,049-1,378 lock, that’s the feature set of locks costing ¥2,000+ from other brands — the price/feature gap is why the 196-like “4 hot EZVIZ models tested” thread and the 273-like “followed the crowd and finally bought the right lock” thread exist.

What Chinese Users Say on JD and SMZDM

Value and build quality. The JD listing carries a 99% positive rate at ¥1,378, and the SMZDM deal-page commenter’s in-store impression is the most concrete owner-adjacent data point: “just bought the DL20FVS king-pin version for under ¥1,100… I’ve seen this in stores, the craftsmanship is very refined, especially the handle. Fingerprint, face, palm vein, multiple unlock methods, and an electronic cat-eye. The standard version is ¥980, plus about ¥120 for the king-pin version.” That maps almost exactly to the Pinduoduo ¥949 deal and the Tmall ¥1,049 deal — the community consensus is that sub-¥1,100 is the fair value line for the DL20FVS.

Semi-automatic vs automatic is the structural debate. The DL20FVS is semi-automatic: unlocking is motor-assisted but you push/pull the handle yourself (the “semi-automatic ceiling” in Xiaohongshu’s 222-like thread title). Buyers coming from fully-automatic locks (motorized bolt, like the Kaadas P30 Pro Max we covered) need to know the difference — semi-automatic is simpler, cheaper and less prone to the motor-failure failure mode, but it’s not the hands-free experience of a full-auto lock. The 2-like “avoid EZVIZ” threads exist but are tiny outliers; the dominant negative signal in the whole search is battery drain (29 likes), not functionality.

Verdict from the two platforms: the DL20FVS is the value pick in EZVIZ’s lineup — 99% positive, sub-¥1,100 consensus fair price, and the Hikvision security pedigree. The debate is semi-auto vs full-auto, not whether the lock works.

What Xiaohongshu Users Say

The buy signals. The 695-like “DL20FVS experience” thread is the strongest single signal on the search page — real ownership, usage details, overwhelmingly positive. The 222-like “the semi-automatic smart lock ceiling” thread frames the DL20FVS as the best of its class. The 210-like “DL20FVS visual door lock” thread and the 196-like “4 hot EZVIZ models tested” thread (a reviewer’s comparison of DL20FVS, Y3000FVP, Y3000FVX and Y31Pro) give buyers the full-lineup map. The 273-like “followed the crowd and finally bought the right lock” thread and the 179-like “researched for over a week, settled on EZVIZ” thread are the decision-process stories.

The cross-brand signal. The 143-like “returned the Desman, bought the EZVIZ Y5000FVS” thread is the most important competitive data point: a real buyer who left a Desman (one of China’s biggest lock brands, which we covered as the Q50F Max) for EZVIZ — the security-brand trust transfer in action. The 152-like “Y31 Pro vs Y5000FVX differences” thread and the 59-like “Y3000FVS vs FVP” thread show the lineup is actively researched.

The caveats. The 29-like “DL20FVS battery drain real-world test” thread is the recurring negative — face recognition and the video doorbell draw power, and the community recommends checking the battery config. The 2-like “avoid EZVIZ smart locks” and 2-like “Y31Pro don’t buy” threads are tiny outliers. The 125-like “how to open the DL20FVS lock-body detection mode” tutorial thread is a sign of a healthy DIY community around the lock.

Verdict from Xiaohongshu: the DL20FVS is EZVIZ’s community-endorsed value pick — 695/222/210/196-like positive threads against a 29-like battery concern and 2-like outliers. The Y31Pro and Y5000FVX sit above it in the lineup; the Y2000F/Y3000FVP sit below or alongside.

EZVIZ DL20FVS vs Competitors (2026-08 Prices)

Lock	Price (2026-08)	Biometrics	Key Difference
EZVIZ DL20FVS	¥949-1,378	3D face + palm vein + fingerprint	Video doorbell + Hikvision ecosystem, semi-auto
EZVIZ Y3000FVX	¥1,529.15-1,699.15	3D face (dual camera)	Dual-camera, 1,116-day low ¥1,529
EZVIZ Y31Pro	¥2,549	AI dual-screen	Top-end, aluminum panel
Kaadas P30 Pro Max (covered)	¥1,398-1,869	3D face + dual camera	Full-auto, radar defense, 99% positive
Loock S6ultra (covered)	¥1,188-1,486	Face + palm vein + finger vein	Mijia ecosystem, full-auto
Desman Q50F Max (covered)	¥390-1,698	Face + fingerprint	Value range, wide price spread
Huawei Smart Lock 2 Ultra (covered)	~¥2,500+	Face + palm vein	Huawei ecosystem, premium

The honest read: at ¥949-1,378 the DL20FVS undercuts the Kaadas P30 Pro Max (¥1,398-1,869) and Loock S6ultra (¥1,188-1,486) while matching their biometrics stacks (face + vein + fingerprint) and adding the video doorbell — the differentiator is Hikvision’s imaging/security DNA plus the screen-and-remote-unlock package. The trade-offs: semi-automatic (vs the full-auto Kaadas/Loock), no Mijia integration (if you’re a Xiaomi-household, the Loock fits your ecosystem), and battery drain from the face module and screen. The Y3000FVX at ¥1,529 adds a dual camera for people who want wider video coverage; the Y31Pro at ¥2,549 is the premium if you want the AI dual-screen.

Who Should Buy the EZVIZ DL20FVS

✅ Buy if: you already use EZVIZ/Hikvision cameras (the app and ecosystem integration is the reason to stay in-brand), you want the face + palm-vein + fingerprint stack with a video doorbell at sub-¥1,400, or you’re renting/renovating and want a reliable security-brand lock without paying full-auto flagship prices — the ¥949 Pinduoduo deal makes this the value king of the tier.

💰 Premium alternative: Kaadas P30 Pro Max at ¥1,398-1,869 if you want a full-auto motorized bolt with radar defense; Huawei Smart Lock 2 Ultra if you’re in the Huawei ecosystem; EZVIZ Y31Pro at ¥2,549 for the AI dual-screen.

⚠️ Skip if: you want hands-free fully-automatic unlocking (the DL20FVS is semi-automatic — the 222-like “ceiling” thread is literally about this being the best semi-auto, not a full-auto), you’re a Mijia household (the Loock S6ultra integrates with your existing setup), or battery-drain paranoia will keep you up (the 29-like test thread documents real draw from face + screen).

FAQ

Q: Is EZVIZ reliable as a lock brand? A: EZVIZ is Hikvision’s consumer brand — the imaging and security engineering are production-grade, and the 99% JD positive rate plus 695-like Xiaohongshu thread support it. The 2-like “avoid” threads are outliers.

Q: Semi-automatic vs fully-automatic — which is better? A: Semi-automatic (this lock) means you push/pull the handle after the bolt retracts — simpler, cheaper, fewer motor failure modes. Full-auto (Kaadas P30 Pro Max, Loock S6ultra) is hands-free but costs more and has more moving parts. Choose by preference, not “better.”

Q: Does the video doorbell work without a subscription? A: The DL20FVS screens visitors on the interior display and supports remote unlock; cloud video playback may require EZVIZ’s cloud service for history. Check the current bundle terms — SMZDM’s deal pages list the lock’s service details.

Q: Where’s the best deal right now? A: Pinduoduo’s 100-billion-subsidy has it at ¥949; Tmall with national subsidy at ¥1,049; JD self-operated at ¥1,378. The SMZDM commenter’s “under ¥1,100” note matches the PDD/Tmall line.

Rating

7.9/10 — The DL20FVS is the value pick of the face-plus-palm-vein tier: 99% positive on JD, ¥949-1,378 across platforms, a complete biometrics stack and a video doorbell with remote unlock, all from Hikvision’s security DNA. The 695/222/210-like Xiaohongshu wins and the 143-like “left Desman for EZVIZ” thread are the strongest signals; the 29-like battery-drain thread and semi-automatic operation are the caveats. Best value security-brand smart lock with a built-in video doorbell; buy at the ¥949-1,049 deal line.

Review based on SMZDM deal history and deal-page comments, JD self-operated listing data (99% positive rate), and Xiaohongshu search results as of August 16, 2026. Prices are point-in-time and change with subsidies.