Best Smart Locks under $100

Shopping for the best smart locks under $100 means deciding whether you value built-in Wi-Fi or a broader mix of fingerprint, keypad, app, and key access. Renters, families, landlords, and busy households need different access controls, so match the lock to your door and daily routine.

Start With the Access Methods

Fingerprint entry is useful when you want to leave keys behind, while keypad access makes scheduled or temporary entry easier for visitors. App control matters if you need access records, remote management, or temporary credentials for family members, cleaners, delivery personnel, or renters.

The five models differ in how much access flexibility they provide. The eufy Security Smart Lock C220 offers six ways to enter, while the ULTRALOQ Bolt SE Wifi Smart Deadbolt Lock supports seven methods and adds web portal access. The Philips Wi-Fi Smart Deadbolt Lock supports app, code, fingerprint, physical key, and voice access.

For a broader explanation of physical keys and electronic entry, see how key lock boxes compare with smart locks.

Check Wi-Fi, Hub, and Voice Requirements

Built-in Wi-Fi avoids a separate bridge on the eufy Security Smart Lock C220 and Philips Wi-Fi Smart Deadbolt Lock. The ULTRALOQ Bolt SE Wifi Smart Deadbolt Lock also has built-in Wi-Fi, but its Matter over Thread features require a compatible Matter over Thread hub. Philips specifies a 2.4 GHz network and recommends keeping the router within 65 feet.

Other models need an added gateway for some remote or voice functions. The Ulecoce U68 Fingerprint Keypad Deadbolt with Knob requires a Ulecoce gateway for Alexa and Google Assistant features, while the Smart Door Handle Lock with Keypad requires a separately sold Wi-Fi gateway for Alexa voice access and remote control.

I keep seeing buyers focus on fingerprint entry while overlooking the connection requirement. The practical fix is to decide first whether remote access must work without an added hub, then choose the access methods your household will actually use.</expert]

If you are unsure what a bridge does, review what a smart lock bridge controls before buying a gateway-dependent model.

Match the Lock to the Door and Power Routine

Installation details vary. The eufy Security Smart Lock C220 fits most standard deadbolts and can fit bores under 54 mm by removing the spacer. The ULTRALOQ Bolt SE Wifi Smart Deadbolt Lock is designed for a 10-minute DIY installation, while the Smart Door Handle Lock with Keypad replaces an existing handle, knob, or deadbolt and has a reversible handle for left- or right-handed doors.

Battery planning also separates these choices. The eufy model uses eight AA batteries and is listed for around eight months, while the ULTRALOQ model lists up to 18 months with Thread. Philips requires AA alkaline batteries, and its batteries are not included. Auto-lock settings are available on the Ulecoce and Philips models, among others.

For related hardware questions, read whether you need both a deadbolt and a knob lock.

Understand the Security and Weather Details

Certification and weather ratings describe different things. The eufy Security Smart Lock C220 is BHMA Grade 3 certified and rated IP53, while the ULTRALOQ Bolt SE Wifi Smart Deadbolt Lock is ANSI BHMA certified and rated IP65. These labels should be read alongside the lock’s installation requirements and the exposure at your entry door.

The eufy model also lists an unusual-attempt alarm and an operating range from -22°F to 158°F. The Philips model includes Away Mode, which disables every entry method except the master code. For broader questions about electronic lock risks, see how smart locks can be hacked. ANSI and BHMA standards information is available through the American National Standards Institute.

Which Lock Fits Your Household

I would put the eufy Security Smart Lock C220 on a frequently used front door when you want fingerprint access, built-in Wi-Fi, voice options, and integration with other eufy devices. Its listed battery duration and BHMA Grade 3 certification also make it a sensible choice for buyers who want several entry options in one deadbolt.

I would point landlords and short-term rental managers toward the Smart Door Handle Lock with Keypad because its app supports permanent and temporary access, one-time passcodes, and unlock records across multiple properties. For a household invested in Apple Home, Alexa, Google Assistant, or Matter, the ULTRALOQ Bolt SE Wifi Smart Deadbolt Lock offers the widest listed access mix, though Matter features need a compatible hub.

The Bottom Line

The mistake buyers make most often is treating every smart lock as a drop-in replacement. Hardware fit, Wi-Fi requirements, gateway needs, and battery format can matter more than the number of entry methods.

If you do one thing first, inspect your existing door hardware and confirm your network setup. Then choose the model whose access methods match the people who will use the door most often.

FAQs

Which entry type is best for a front door?

Fingerprint entry is convenient for household members, while keypad codes are useful for guests, renters, and service providers. App access adds remote management, but some voice and remote features require a gateway or compatible hub.

Do these smart locks need a hub?

The eufy Security Smart Lock C220 and Philips Wi-Fi Smart Deadbolt Lock have built-in Wi-Fi and do not need an extra hub for their listed remote access. Ulecoce, Yamiry, and some ULTRALOQ features require a separately sold gateway or Matter over Thread hub.

How should I plan battery maintenance?

Check the stated battery format before installation. The eufy model uses eight AA batteries, Philips requires AA alkaline batteries, and the listed battery duration varies by model and usage.

What does BHMA or ANSI certification mean?

BHMA and ANSI references identify recognized standards connected with door hardware performance. They do not replace checking fit, weather exposure, network requirements, or the lock’s available entry methods.