For renters who want smart access without replacing existing keys, start with an interior retrofit lock that turns the current deadbolt and leaves exterior hardware in place. Philips models offer keypad or fingerprint access; FEOCEY models advertise longer battery life and simple removal. SafeRentGear claims tool-free fitting across more lock types, but its broad compatibility needs careful confirmation. Check your lease and exact deadbolt fit before ordering.
What matters most for renters
- Keep the existing key: Interior retrofit designs preserve outside hardware and the original key. Confirm product instructions match your deadbolt.
- Check fit: Several listed models require a single-cylinder deadbolt. Measure door thickness and backset where specifications are listed; confirm other dimensions with the manufacturer.
- Confirm permission: No-drill installation does not automatically mean lease approval. Ask the property manager if lock changes or added adhesive accessories are restricted.
- Plan entry methods: A phone-only model differs from one with keypad, fingerprint, or physical-key backup. Keep a working key accessible.
- Account for connectivity and upkeep: Built-in Wi-Fi models need 2.4GHz Wi-Fi. Battery-life figures are manufacturer claims and vary by usage.
Options compared
| Model | Useful renter feature | Important limitation |
|---|---|---|
| Philips WiFi Smart Retrofit Lock | Retains existing exterior hardware and keys; wireless keypad supports fingerprint and passcodes. | Keypad must sit within 39 inches of door. Claimed battery life is up to 4 months. |
| FEOCEY Retrofit Smart Lock for Existing Deadbolt | Installs inside with screwdriver, preserves keys, and is described as removable for a move. | Requires compatible single-cylinder deadbolt and specified door dimensions. Battery claim is up to 10 months at 10 cycles daily. |
| FEOCEY Retrofit Smart Lock with Keypad,Fits | Includes keypad, app access, temporary and one-time codes, and built-in Wi-Fi. | Confirm exact door fit and keypad setup needs. Listing gives no separate battery-life estimate for this version. |
| SafeRentGear Retrofit Smart Door Lock with Keypad | Claims no-drill, tool-free installation and compatibility with deadbolt, mortise, and rim/latch locks. | Includes Wi-Fi hub; broad fit claim and adhesive attachment require verification for your exact hardware and rental rules. |
| Philips WiFi Smart Lock with Fingerprint Keypad | Retains original keys and includes keypad access, app control, and auto-lock. | Listing says most single-cylinder deadbolts, but exact fit still needs confirmation. It specifies a door sensor and alignment limits. |
Product details and tradeoffs
Philips WiFi Smart Retrofit Lock
Philips WiFi Smart Retrofit Lock keeps the existing outside hardware and keys while adding app access and a wireless keypad with fingerprint and passcode entry. The keypad can be placed up to 39 inches from the door. The listing states up to 4 months of battery life from two CR123 batteries.
Pros: Original keys remain usable; no hub required; keypad supports multiple code schedules and fingerprint access. Cons: Shorter stated battery life than FEOCEY claims; keypad placement has a distance limit. Who should skip it: Renters who need keypad placement farther than 39 inches or want fewer battery changes.
FEOCEY Retrofit Smart Lock for Existing Deadbolt
FEOCEY Retrofit Smart Lock for Existing Deadbolt installs on the interior with a screwdriver and is advertised as removable for reuse after a move. The manufacturer lists compatibility with Schlage and Kwikset deadbolts, a 2-3/8- or 2-3/4-inch backset, and door thickness from 1-3/8 to 2-1/6 inches. It claims up to 10 months per battery set at 10 cycles per day; actual use may vary.
Pros: Keeps original keys; no drilling; built-in 2.4GHz Wi-Fi and no hub; low-battery alerts. Cons: No included keypad is listed; compatibility depends on the existing deadbolt and door dimensions. Who should skip it: Renters who need keypad or fingerprint entry, or whose lock and door do not match listed fit requirements.
FEOCEY Retrofit Smart Lock with Keypad,Fits
FEOCEY Retrofit Smart Lock with Keypad,Fits adds keypad codes to an existing single-cylinder deadbolt. Its listing specifies a 2-3/8- or 2-3/4-inch backset, built-in 2.4GHz Wi-Fi, app control, and Alexa compatibility. Keypad access supports permanent, temporary, or one-time codes.
Pros: Preserves original keys; includes keypad and remote app access; code options suit guests. Cons: Listing does not give a battery-life estimate for this version; confirm exact dimensions before purchase. Who should skip it: Renters who do not want a keypad or cannot verify single-cylinder deadbolt compatibility.
SafeRentGear Retrofit Smart Door Lock with Keypad
SafeRentGear Retrofit Smart Door Lock with Keypad claims tool-free installation and support for deadbolt, mortise, and rim/latch locks. It uses the Tuya SmartLife app and includes a Wi-Fi hub for Alexa and Google Home integration.
Pros: Advertised for several lock styles; keypad and app entry; no-drill setup claim. Cons: A hub is required for listed smart-home integration; adhesive pads may not suit every rental surface or lock layout. Broad compatibility claims should be checked against your exact hardware. Who should skip it: Renters seeking a hub-free setup or unwilling to use adhesive mounting.
Philips WiFi Smart Lock with Fingerprint Keypad
Philips WiFi Smart Lock with Fingerprint Keypad is described as a retrofit for most single-cylinder deadbolts, retaining existing keys and adding built-in Wi-Fi, app history, keypad codes, and fingerprint access. Its listing specifies a separate door sensor; sensor and magnet alignment and distance affect operation, and a metal frame may affect sensor performance.
Pros: Key and app access remain available; keypad adds fingerprint and code entry; no Wi-Fi bridge required. Cons: Door sensor placement adds an installation checkpoint; fit must be confirmed for the exact deadbolt. Who should skip it: Renters who cannot place or align the sensor as required, or whose door hardware is not compatible.
How to choose
Choose Philips retrofit hardware if keypad or fingerprint access matters and the keypad placement works. Choose a FEOCEY version if its stated deadbolt fit matches your door; select the keypad model for code access, or the basic model if app control is enough. Consider SafeRentGear only after confirming that its attachment method and claimed lock compatibility suit your door.
Before purchase, check deadbolt type, backset, door thickness, interior clearance, and lease terms. Ask the property manager about installation and removal. After fitting, confirm the original key still operates the lock and test app, keypad, and auto-lock functions while you remain inside.
Frequently asked questions
Do retrofit smart locks keep the original key working?
The listed retrofit models are described as retaining existing keys or exterior hardware. Confirm compatibility with your deadbolt, then verify physical-key operation after installation.
Does no-drill installation mean landlord approval is unnecessary?
No. Lease rules may cover lock changes, attached accessories, or access control even when installation leaves no drilled holes. Get approval when lease terms are unclear.
Can these locks fit any apartment deadbolt?
No. Several models specify single-cylinder deadbolts and particular backsets or door dimensions. Compare those measurements with your door and the exact model requirements before ordering.
Do built-in Wi-Fi models need a hub?
FEOCEY and Philips listings describe direct 2.4GHz Wi-Fi without a hub. SafeRentGear includes a hub for its listed smart-home integration. Check whether your home network and preferred features match the product requirements.
Pros
- Keeps existing keys and exterior deadbolt hardware in place.
- Offers fingerprint, passcode, app, and voice-control access options.
Cons
- Existing deadbolt compatibility details are not provided, so buyers should verify fit before purchase.
- Keypad placement is limited to within 39 inches of the door.
Specifications
| Color | Sliver |
|---|---|
| Size | WiFi Deadbolt + Fingerprint Keypad |
| Dimensions | 2 x 2 x 2 inches |
| Product Group | Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Keeps existing keys and exterior deadbolt hardware in place.
- Offers fingerprint, passcode, app, and voice-control access options.
- Supports temporary and recurring codes, useful for visitors and service providers.
Consider another option if
- Existing deadbolt compatibility details are not provided, so buyers should verify fit before purchase.
- Keypad placement is limited to within 39 inches of the door.
- Who should skip it: Buyers who want a complete exterior-and-interior lock replacement or need confirmed compatibility with a specific deadbolt.
Pros
- Keeps existing deadbolt hardware and original keys in use.
- Combines built-in Wi-Fi with keypad codes and fingerprint entry.
Cons
- Compatibility is limited to most single-cylinder deadbolts, so buyers need to confirm their lock fits.
- Door sensor requires careful alignment and less than 20 mm separation; metal frames may affect performance.
Specifications
| Color | Matte Black |
|---|---|
| Size | WiFi Smart Lock+Fingerprint Keypad |
| Dimensions | 2.9 x 3 x 2.2 inches |
| Weight | 1 pounds |
| Product Group | Home Improvement |
| Binding | Tools & Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Keeps existing deadbolt hardware and original keys in use.
- Combines built-in Wi-Fi with keypad codes and fingerprint entry.
- App provides access notifications, event records, and flexible permission sharing.
Consider another option if
- Compatibility is limited to most single-cylinder deadbolts, so buyers need to confirm their lock fits.
- Door sensor requires careful alignment and less than 20 mm separation; metal frames may affect performance.
- Who should skip it: buyers seeking a complete replacement deadbolt or whose existing lock is incompatible.
Pros
- Wi-Fi operation needs no separate hub.
- Multiple entry methods include app, keypad, and listed geofencing unlock.
Cons
- Door thickness and backset must match listed ranges for fit.
- Remote features depend on Wi-Fi and the Kwikset app, so users seeking a standalone keypad lock may prefer another option.
Best For / Avoid If
Best for buyers prioritizing
- Wi-Fi operation needs no separate hub.
- Multiple entry methods include app, keypad, and listed geofencing unlock.
- Lifetime mechanical and finish warranty, plus 1-year electronics warranty, as stated in product details.
Consider another option if
- Door thickness and backset must match listed ranges for fit.
- Remote features depend on Wi-Fi and the Kwikset app, so users seeking a standalone keypad lock may prefer another option.
- Who should skip it: buyers needing an unlisted smart-home platform or different door dimensions.
Pros
- Keeps existing keys and deadbolt, avoiding a full lock replacement.
- Keypad supports several code types for household and guest access.
Cons
- Fits most, not all, US single-cylinder deadbolts; confirm backset and lock type before purchase.
- Wi-Fi connection requires a 2.4GHz network, which may not suit homes using other bands only.
Specifications
| Color | Silver |
|---|---|
| Dimensions | 2.8 x 2.8 x 2 inches |
| Product Group | Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Keeps existing keys and deadbolt, avoiding a full lock replacement.
- Keypad supports several code types for household and guest access.
- Anodized aluminum finish is listed as scratch-resistant and fingerprint-proof.
Consider another option if
- Fits most, not all, US single-cylinder deadbolts; confirm backset and lock type before purchase.
- Wi-Fi connection requires a 2.4GHz network, which may not suit homes using other bands only.
- Who should skip it: buyers needing a complete deadbolt replacement or compatibility beyond the listed lock types.
Pros
- Keeps existing keys, so users retain a physical entry option.
- Removable design can move with renters to another compatible home.
Cons
- Compatibility is limited to listed single-cylinder deadbolts and door dimensions; confirm fit before buying.
- Requires 2.4 GHz Wi-Fi for remote features and door-ajar alerts.
Specifications
| Color | Silver |
|---|---|
| Dimensions | 2.7952755877 x 2.7952755877 x 2.0472440924 inches |
| Weight | 0.661386786 pounds |
| Product Group | Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Keeps existing keys, so users retain a physical entry option.
- Removable design can move with renters to another compatible home.
- Alexa voice control adds a hands-free way to lock or check status.
Consider another option if
- Compatibility is limited to listed single-cylinder deadbolts and door dimensions; confirm fit before buying.
- Requires 2.4 GHz Wi-Fi for remote features and door-ajar alerts.
- Keypad is sold separately, so full keypad-based keyless entry requires an additional purchase.
Pros
- Keeps compatible existing keys as a physical backup.
- Offers remote app control through built-in Wi-Fi, without a separate hub or subscription.
Cons
- Fit is limited to listed door thickness and backset ranges, and compatibility is specified for Schlage and Kwikset deadbolts.
- Keypad is optional and sold separately, so keypad-based entry requires an additional purchase.
Specifications
| Color | Champagne gold |
|---|---|
| Dimensions | 2.7952755877 x 2.7952755877 x 2.0472440924 inches |
| Weight | 0.661386786 pounds |
| Product Group | Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Keeps compatible existing keys as a physical backup.
- Offers remote app control through built-in Wi-Fi, without a separate hub or subscription.
- Removable installation can suit renters and people who plan to move.
Consider another option if
- Fit is limited to listed door thickness and backset ranges, and compatibility is specified for Schlage and Kwikset deadbolts.
- Keypad is optional and sold separately, so keypad-based entry requires an additional purchase.
- Who should skip it: buyers whose existing deadbolt or door dimensions fall outside the listed compatibility range, or those who want a keypad included.
Pros
- Retains compatible existing deadbolt, mortise, or rim/latch hardware.
- Offers keypad, app, and temporary-code access options.
Cons
- Fitment is limited to compatible existing locks, and product details do not list exact lock dimensions or fit criteria.
- WiFi hub is needed for Alexa and Google Home integration.
Specifications
| Color | Gray |
|---|---|
| Dimensions | 9 x 5 x 4 inches |
| Weight | 4.63 pounds |
| Product Group | Home Improvement |
| Binding | Tools & Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Retains compatible existing deadbolt, mortise, or rim/latch hardware.
- Offers keypad, app, and temporary-code access options.
- Includes WiFi hub for Alexa and Google Home integration.
Consider another option if
- Fitment is limited to compatible existing locks, and product details do not list exact lock dimensions or fit criteria.
- WiFi hub is needed for Alexa and Google Home integration.
- Who should skip it: buyers seeking a full lock replacement or confirmed compatibility with an unlisted lock setup.
Pros
- Preserves existing keys and exterior hardware.
- Supports fingerprint entry plus permanent, one-time, scheduled, and recurring passcodes.
Cons
- Compatibility with specific existing deadbolt setups is not stated, so buyers should verify fit before purchase.
- Wireless keypad must be installed within 39 inches of the door.
Specifications
| Color | Polish Black |
|---|---|
| Dimensions | 5 x 5 x 5 Inches |
| Product Group | Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Preserves existing keys and exterior hardware.
- Supports fingerprint entry plus permanent, one-time, scheduled, and recurring passcodes.
- Remote access management includes alerts, activity history, and shared app permissions.
Consider another option if
- Compatibility with specific existing deadbolt setups is not stated, so buyers should verify fit before purchase.
- Wireless keypad must be installed within 39 inches of the door.
- Who should skip it: Buyers who want a full exterior lock replacement or need keypad placement farther from the door.
