⚡ Quick Answer
Keyless deadbolts have moved beyond simple keypad entry, and this roundup pits six smart locks against each other. Prices span from the budget Desloc B200 at $49.98 up to the premium eufy Video Smart Lock E330 3‑in‑1 at $199.99, with mid‑range options like the eufy E31 ($124.98) and Lockstar ($139.97) filling the middle ground. All units are designed for DIY installation, but the eufy Video model even advertises no‑drill mounting.
The eufy Video lock packs a rechargeable Li‑ion battery, auto‑lock, IP65 weather protection and AES128 + ECC encryption, while supporting five unlock methods—fingerprint, app, keypad, voice and physical key. It fits doors 1.38‑2.17 in thick, stores up to 50 fingerprints, and operates from –22 °F to 158 °F. Battery life runs three to twelve months, depending on usage. User sentiment varies: Lockstar leads with a 4.6‑star rating from 1,394 reviews, while the Desloc B200 and eufy E31 both sit at 4.3 stars.
Next, we break down each model’s strengths, quirks, and ideal use cases so you can match the right smart deadbolt to your home or office. We’ll also compare battery longevity, connectivity options, and the level of smart‑home integration each device offers.

eufy Video Smart Lock E330 3-in-1
Its 10000 mAh rechargeable battery gives long‑term power, keeping the lock running for months without replacement.

Desloc B200
Ideal for budget‑conscious renters who need a simple smart lock, the Desloc B200 comes in at $49.98—roughly $150 less than the eufy premium model.

Lockstar Smart Door Lock
Its compact 30 mm depth lets the Lockstar fit slimmer door setups where the bulkier eufy and Desloc units would struggle, offering a sleek alternative without sacrificing reliability.
Also considered
TL;DR: The Lockstar Smart Door Lock packs fingerprint, keypad, app and key access into a lightweight 1‑pound deadbolt with a 30 mm depth and solid 4.6‑star rating.
The lock’s standout spec is its versatile access suite: an app, fingerprint sensor, 6‑9 digit keypad, FOB keys (3 included) and traditional keys (2 included) all work on a single deadbolt. Its physical dimensions—30 mm depth, 164 mm height and 67 mm width—fit doors 38‑48 mm thick, and the adjustable 60 mm or 70 mm deadbolt length adds extra flexibility. Weighing just 1.0 pound (454 g), it’s one of the lighter options on the market.
Compared with the other five deadbolts in this roundup, Lockstar is noticeably lighter than the Yale Smart Lock (≈3.7 lb), the eufy Video Smart Lock E330 (≈3.6 lb) and the Desloc B200 (≈2.0 lb). Its 30 mm depth is deeper than Yale’s 22.35 mm, while its 164 mm height exceeds Yale’s 136.65 mm, giving it a more substantial profile. Width‑wise, Lockstar’s 67 mm is just a touch wider than Yale’s 65.02 mm, and its overall size remains comparable to the eufy C33 and E31, which list larger dimensions in inches.
Users consistently praise the fingerprint scanner for speed and accuracy, and professional reviewers note the sensor’s reliability. The built‑in door sensor triggers immediate auto‑lock, a feature highlighted for preventing accidental lock‑outs. However, buyers often mention that the lock ships without batteries, and remote app control hinges on an optional Wi‑Fi gateway, adding an extra purchase and setup step.
From a technical standpoint, the lock draws less than 30 µA in static mode and under 200 mA when active, running on four AA alkaline cells at 6 V. It operates in temperatures from –20 °C to 70 °C and humidity between 20‑80 % RH, and includes anti‑drill and anti‑pick security measures along with tamper alerts and activity logs.
Pros
Cons
Best for: Families, rental properties, and homes with frequent visitors who need customizable codes and remote control options.
Avoid if: You require built‑in Wi‑Fi for immediate remote access without an extra gateway, or you prefer a lock that ships with batteries.
“every time my door closes it automatically locks”
TL;DR: The Desloc B200 delivers sub‑0.3‑second fingerprint unlocking, 12‑month battery life, and multiple access methods for just $49.98, making it a solid, budget‑friendly keyless deadbolt.
The standout spec is its fingerprint recognition speed of less than 0.3 seconds, letting you glide through the door without fumbling. Battery life stretches to about 12 months on four AA cells, and the lock supports six unlock methods—including fingerprint, PIN, app, eKey, IC card, and a mechanical key.
Compared with the eufy Video Smart Lock E330 3‑in‑1, which weighs about 3.62 lb and measures 221 mm deep, the B200 is lighter at 2.03 lb and shorter at 185 mm. It matches the E330’s 50‑fingerprint capacity while staying well under its price tier. The C33’s dimensions exceed 5 inches in height, making the B200’s 83 mm profile more compact for tight door jambs. The E31’s internal unit tips the scales at roughly 16.75 oz, noticeably lighter than the B200’s 2.03 lb, but the B200 adds features like anti‑peeping mode and a broader set of unlock methods without a separate bridge. The Lockstar model comes in at about 1.0 lb, so the B200 is a bit heavier, yet it offers a BHMA Grade 3 rating that the Lockstar doesn’t list. Yale’s lock tops out around 3.70 lb, placing the B200 in the middle‑weight range with solid security credentials.
Professional reviewers praise the lightning‑fast fingerprint response and the flexibility of having both digital and physical keys. Users appreciate the anti‑peeping mode for privacy, but many note that remote control and voice commands require a separate G2 Gateway, adding to the overall cost. The Bluetooth range is limited to 2 meters without the gateway, which can feel restrictive in larger homes.
Additional technical notes include an IP54 rating for splash resistance, an operating temperature span from –30 °C to 70 °C, and an auto‑lock timer that can be set anywhere between 5 and 900 seconds. The lock comes with two mechanical keys and a 12‑month warranty, rounding out a feature‑rich package for its price.
Pros
Cons
Best for: Budget-conscious buyers seeking a reliable entry-level option — the Desloc B200 offers Bluetooth Range: 2 meters
Avoid if: You need built‑in Wi‑Fi remote control without buying an extra gateway
TL;DR: The eufy Video Smart Lock E330 3‑in‑1 packs a 2K camera, 50‑fingerprint slots and a 10,000 mAh rechargeable battery into a weather‑proof deadbolt, but its battery may need more frequent charging than advertised.
What truly sets the E330 apart is its built‑in 2K (2560 × 1440) video camera with an f/1.6 aperture and color night vision, backed by dual motion sensors that reach 5.2 m. The lock stores up to 50 fingerprints and unlocks in 0.3 seconds, while AES128 + ECC encryption and a BHMA certification add a solid security layer. Its 100,000‑cycle durability rating, 2000 N pressure resistance and IP65 weather rating mean it can handle the harshest front‑door conditions.
Compared with the other five deadbolts in this roundup, the E330 is noticeably deeper at 221 mm versus Yale’s 22.35 mm and Lockstar’s 30 mm, giving it a more robust profile. At roughly 3.62 lb it sits between the lightweight Lockstar (1.0 lb) and the heavier Yale (3.70 lb), while still being lighter than the Desloc B200’s 2.03 lb when converted. Its rechargeable 10,000 mAh Li‑ion battery outpaces the alkaline‑powered Yale and the AA‑battery C33, and matches the battery capacity of the eufy E31. The E330 also supports Wi‑Fi directly, Alexa and Google Assistant, whereas HomeKit and Matter are absent across the board.
Users love the all‑in‑one design: the lock doubles as a doorbell and a 2K camera, eliminating the need for separate hardware. Reviewers consistently praise the fast fingerprint response and the local 8 GB storage (expandable to 128 GB) for privacy‑focused households. However, many note that real‑world battery life often falls short of the 3‑12 month claim, requiring more frequent recharges despite the large capacity. The touch‑sensitive keypad and doorbell button can be dim in low light, and the lack of HomeKit or Matter limits integration for Apple‑centric smart homes.
From a technical standpoint, the lock operates from –22 °F to 158 °F (‑30 °C to 70 °C) and includes a built‑in ambient light sensor that triggers the doorbell’s auto‑light. The 25.4 mm hole size compatibility and >45 mm handleset clearance make installation straightforward without drilling, and the 18‑month warranty provides added peace of mind.
Pros
Cons
Best for: Homeowners seeking an all‑in‑one front‑door solution without extra hardware — the eufy Video Smart Lock E330 3‑in‑1 offers Battery Capacity: 10000 mAh.
Avoid if: You need Apple HomeKit or Matter compatibility, or you require exceptionally long battery life without frequent recharging.
“battery killer”
“remarkably sleek and compact”
TL;DR: The eufy Smart Lock C33 offers integrated Wi‑Fi, adaptive fingerprint access, and a back‑lit anti‑peep keypad for $99.99, delivering easy no‑drill installation and solid BHMA Grade 3 security.
What really stands out is the built‑in Wi‑Fi that talks straight to the eufy app, so you don’t need a bridge or extra hub. Pair that with adaptive fingerprint recognition that learns your grip, and you get one‑handed entry without a key. The lock measures 5.12 inches high, 7.24 inches long and 6.06 inches wide, giving it a compact footprint for most door jambs.
At $99.99, the C33 is cheaper than the eufy Video Smart Lock E330 3‑in‑1 and also less expensive than the eufy Smart Lock E31. Its 5.12‑inch height is taller than the E31’s 4.4‑inch height, while the overall size remains comparable to the Lockstar Smart Door Lock, which lists a height of 164 mm. In other words, you get a full‑featured deadbolt without the premium price tag of its higher‑end siblings.
Users repeatedly praise the lock’s “instant” fingerprint unlock, especially families juggling multiple members. Reviewers also note the 15‑minute, no‑drill setup as a major convenience for renters and Airbnb hosts. Professional reviewers highlight the reliable remote control via Wi‑Fi and the comprehensive app that logs events and sends real‑time notifications.
Beyond the biometric and connectivity perks, the C33 carries an IP53 rating for splash resistance, a back‑lit anti‑peeping keypad, and a privacy mode that blocks exterior access with a red light indicator. The lock auto‑locks on a configurable countdown and runs on eight AA alkaline batteries, which the manufacturer says last 8‑12 months. eufy backs the product with an 18‑month warranty.
Pros
Cons
Best for: Entry-level buyers or those on a tight budget — the eufy Smart Lock C33 offers Height: 5.12 inches
Avoid if: You need the highest security standards or integrated video doorbell functionality.
TL;DR: The eufy Smart Lock E31 offers six unlocking methods, a 10,000 mAh rechargeable battery and Matter‑compatible Wi‑Fi control, all in a compact 2.44‑lb deadbolt priced at $124.98.
What really stands out is the 10,000 mAh rechargeable battery that powers the lock for up to 14 months, with a low‑battery alert at 20 % and a design that tolerates ten unlocks per day. Fingerprint access is lightning‑fast at 0.3 seconds, and the lock tolerates up to 100,000 lock/unlock cycles. With an IP53 rating, 144‑hour humidity resistance and 2200 N pressure resistance, the hardware is built for durability.
At 2.44 lb, the E31 is heavier than the Lockstar’s 1.0‑lb unit but lighter than Yale’s roughly 3.70‑lb model, and it sits close to the Desloc B200’s 2.03‑lb weight. In terms of dimensions, the lock’s 7.7‑inch width and 8.1‑inch depth make it broader than the compact Lockstar, while the C33’s 5.12‑inch height and 7.24‑inch length are shorter than the E31’s 4.4‑inch height. Unlike the C33 and Desloc, the E31 does not need a hub and works directly over 2.4 GHz Wi‑Fi, and it adds Matter 1.2 compatibility that many peers lack.
Professional reviewers point out the BHMA certification as a strong reliability signal, and users appreciate the six unlock methods—fingerprint, app, keypad, voice, physical key and Matter—especially the quick 0.3‑second fingerprint scan. However, the lock does not support Apple HomeKey, which limits iPhone users who prefer that seamless unlock. The reliance on a single 2.4 GHz Wi‑Fi band also means it won’t benefit from faster 5 GHz networks.
Technical details include AES128 + ECC encryption, a humidity resistance of 144 hours, and a 15‑minute installation time with no drilling required. The lock also offers door‑status monitoring, remote control via the eufy Security app, and voice assistant support for Siri, Alexa and Google Assistant, making it a solid choice for smart‑home enthusiasts.
Pros
Cons
Best for: Home and office users seeking a balance of features and value — the eufy Smart Lock E31 offers Battery Capacity: 10,000 mAh
Avoid if: You want the best value‑per‑dollar in its price range
TL;DR: Yale’s Matter‑enabled Smart Lock offers a 22.35 mm slim profile, 12‑month battery life and IPX5 protection, but its premium $149.98 price and hub requirement may deter budget‑focused buyers.
The lock’s standout spec is its Matter‑over‑Thread connectivity, letting you control it via Google Home, Apple Home, Amazon Alexa or Samsung SmartThings without a separate Wi‑Fi bridge. It also carries the ANSI/BHMA Grade 2 certification and an IPX5 (or IP65) weather rating, making it suitable for US/Canadian doors in temperatures from –22°F to 140°F.
At 3.7 lb (1678 g) it is noticeably heavier than the Lockstar Smart Door Lock (about 1.0 lb) and the eufy E31’s external unit (≈0.8 lb), yet comparable to the eufy Video Smart Lock E330’s 3.6 lb. Its depth of 22.35 mm is shallower than Lockstar’s 30 mm, while its door‑thickness range of 34.93 mm to 57.15 mm fits a broader set of doors than many peers. The lock also packs a 12‑month battery life on four AA alkaline cells—far longer than the eufy C33’s 8‑12 month claim, though it lacks a rechargeable option.
Users praise the quick Google Home setup, the responsive push‑button keypad and the sleek Snow finish that blends with modern interiors. Professional reviewers highlight the “Made for Google Home” badge and the eco‑friendly 60 % recycled‑plastic construction. Common complaints focus on the need for a separate Matter‑enabled hub for remote access and occasional hiccups with the companion app, as well as the higher price tag relative to lighter, less feature‑rich alternatives.
Pros
Cons
Best for: Those prioritizing quality and willing to pay for premium performance — the Yale Smart Lock offers Depth: 22.35 mm
Avoid if: You're on a tight budget, need remote access without an extra hub, or prefer a rechargeable battery solution
Breakdown

eufy Video Smart Lock E330 3-in-1
Pros

Desloc B200
Pros

Lockstar Smart Door Lock
Pros

eufy Smart Lock E31
Pros
Cons
Based on scoring data and product specs
Personalized picks

Best Overall Pick
eufy Video Smart Lock E330 3-in-1
Best OverallBest for: Audiophiles and enthusiasts seeking premium sound quality and advanced features — the eufy Video Smart Lock E330 3-in-1 offers Battery Capacity: 10000 mAh

Desloc B200
Best for: Budget-conscious buyers seeking a reliable entry-level option — the Desloc B200 offers Bluetooth Range: 2 meters
$58.81-$191.18 vs winner
Skip Yale Smart Lock if…
You're on a tight budget or only need basic functionality
The eufy Video Smart Lock E330 3‑in‑1 takes the top spot with a solid 4.2‑star rating from 1,093 reviewers and a list price of $199.99, a notable drop from its $299.99 MSRP. It’s IP65‑rated for weather resistance, supports auto‑lock, and stores up to 50 fingerprints—all without any drilling, making installation a quick 15‑minute job.
The Desloc B200 lands as the runner‑up, ideal if you need a budget‑friendly lock that still offers fingerprint access and app control. At $49.98 it carries a 4.3‑star rating from 1,311 reviews, supports 50 fingerprint entries, and includes an auto‑lock timer that can be set anywhere from 5 to 900 seconds.
For tighter wallets, the Desloc B200 remains the best budget pick at $49.98. If you can stretch a bit, the Lockstar Smart Door Lock at $139.97 provides a mid‑range upgrade. At the premium end, Yale Smart Lock rounds out the options at $149.98, offering a higher‑priced alternative for those who want a well‑known brand.
Choose the eufy Video Smart Lock E330 3‑in‑1 for the most feature‑rich, hassle‑free keyless deadbolt experience.
It combines a built‑in 2K video camera (2560 × 1440) with color day/night night vision, full‑HD facial recognition via the eufy app, and universal smart‑home compatibility through Wi‑Fi, Alexa and Google Assistant. The lock also offers auto‑lock, five unlock methods and an IP65 rating, all without needing a hub or drilling.
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