May 21 ,2025
best smart locks,shop
May 21 ,2025
In today’s rapidly evolving smart home landscape, securing your property effectively has never been more important. The traditional lock and key system is quickly becoming obsolete as homeowners and businesses seek more sophisticated security solutions. Double sided smart locks represent one of the most significant advancements in door security technology available in 2025, offering protection and convenience that conventional locks simply cannot match.
A double sided smart lock provides electronic access controls on both the interior and exterior sides of your door. Unlike standard smart locks that only secure one side (typically the exterior), double sided smart locks offer comprehensive protection by requiring authorized access from either direction. This dual-control mechanism significantly enhances security while eliminating the need to carry physical keys altogether.
Throughout this comprehensive guide, we’ll examine the best double sided smart lock options on the market today, explore their unique features, compare their specifications, and provide actionable advice to help you choose the perfect lock for your specific needs. Whether you’re securing a residential property, vacation rental, or commercial space, this article will equip you with the knowledge needed to make an informed decision.
The growing popularity of double sided smart locks isn’t simply due to technological novelty – these advanced security devices offer tangible benefits over conventional locks and even single-sided smart locks.
Double sided smart locks provide an exceptional level of security for several reasons:
Beyond security enhancements, double sided smart locks offer remarkable convenience:
You’ll never need to fumble for keys when your hands are full, regardless of which side of the door you’re on. Whether you’re bringing groceries inside or taking out the trash, keyless entry from both directions streamlines daily movements.
Most double sided smart locks allow you to create temporary access codes for visitors, service providers, or rental guests. You can customize access schedules, monitor entry events, and revoke permissions remotely – all features impossible with traditional lock systems.
Many models also integrate with smart home ecosystems, enabling voice control or automated sequences like unlocking when you arrive home or locking automatically at bedtime.
Double sided smart locks excel in multi-user environments:
For vacation rental owners, these locks eliminate the logistics of key handoffs and the security risks of lost or duplicated keys. Owners can provide temporary access codes that automatically expire after the rental period ends.
In office settings, double sided smart locks allow businesses to control and monitor access to sensitive areas while maintaining detailed entry logs for security audits.
Multi-tenant buildings benefit from the ability to provide different access levels to various users – residents might have 24/7 access while delivery personnel could be restricted to specific time windows.
When compared to single-sided smart locks, double sided models offer complete control over both entry and exit. This prevents unauthorized persons who might gain access to the interior side of the door from exiting without proper authentication.
Traditional locks rely entirely on mechanical components that can wear out or be compromised through various physical attacks. Double sided smart locks incorporate electronic security layers that significantly complicate unauthorized access attempts.
While traditional locks require physical key management (including the security risks of lost or copied keys), double sided smart locks eliminate these concerns entirely through digital credential management.
After extensive research and hands-on testing, these seven double sided smart locks stand out as the best options currently available:
Model | Access Methods | Door Compatibility | Power Source | Smart Integration | Price Range | Amazon Rating |
---|---|---|---|---|---|---|
iuknob Double Sided | Keypad + Key | 1⅜”–2″ | 4 AAA (8 mo) | None | $119–$129 | ★ 4.1 (138) |
IU-30 Code Door Lock | Keypad + Key | 1⅜”–2¼” | 4 AA (12 mo) | None | $47–$59 | ★ 4.2 (1,143) |
Casmer Upgrade | Keypad + Key | 1⅜”–2⅜” | 4 AA (10 mo) | None | $79–$99 | ★ 4.2 (215) |
BOTHSTAR Keypad | Keypad + Key | 1⅜”–2¾” | 4 AAA (12 mo) | None | $119–$129 | ★ 4.2 (3,652) |
BOTHSTAR Fingerprint | Fingerprint + PIN + App | 1⅜”–2½” | Rechargeable (3 mo) | Bluetooth App | $169–$179 | ★ 4.0 (87) |
Mechanical Button | Mechanical Buttons | 1⅜”–2¼” | None (mechanical) | None | $115–$139 | ★ 4.1 (312) |
“New Upgrade” | Keypad + Key | 1.38″–2.9″ | 4 AA (8 mo) | None | $79–$99 | ★ 4.2 (154) |
Best Value: IU-30 Code Door Lock offers exceptional performance and reliability at a mid-range price point.
Best for Heavy Use: BOTHSTAR Keypad model delivers outstanding durability with the highest review count proving consistent performance.
Best for Outdoors: Mechanical Button lock provides maximum weather resistance with no electronic components to fail.
Most Versatile: “New Upgrade” model accommodates the widest range of door thicknesses.
Most Advanced: BOTHSTAR Fingerprint model offers cutting-edge biometric technology and app connectivity.
Proper installation ensures both the security and functionality of your double sided smart lock. Follow these guidelines for best results:
Before beginning installation, complete these essential preparations:
While specific installation varies by model, most double sided smart locks follow this general process:
Be aware of these frequent installation mistakes:
Consider professional installation in these circumstances:
Proper maintenance ensures long-term reliability of your double sided smart lock:
For battery-powered models:
Maintain optimal performance with proper cleaning:
Manage access credentials effectively:
For connected models:
When to seek professional assistance:
Most manufacturers provide dedicated support channels for troubleshooting assistance.
No, double sided smart locks are not generally illegal, but there are important considerations regarding building codes and safety regulations. Fire safety codes in some jurisdictions restrict certain types of double keyed deadbolts (requiring keys on both sides) because they could impede emergency egress during a fire. However, most double sided smart locks are specifically designed to comply with these regulations by providing emergency egress capabilities through:
Always check local building codes before installation, particularly for commercial properties or rental units where stricter regulations may apply.
Yes, double sided smart locks are specifically designed to lock and unlock from both sides using electronic authentication rather than keys or thumb turns. These specialized locks require authorized access (via PIN code, fingerprint, app, or other methods) from either direction. This dual-control capability makes them ideal for situations requiring controlled access in both directions, such as:
All seven models reviewed in this article provide this double sided locking functionality with various authentication methods and features.
While double sided smart locks offer numerous advantages, potential disadvantages include:
Power Dependency: Most electronic locks rely on batteries or external power, creating potential failure points during power outages (though many include backup power options).
Initial Cost: Quality double sided smart locks typically cost more than traditional mechanical locks, with prices ranging from $70 to $200+ depending on features.
Technical Complexity: Programming, troubleshooting, and maintaining electronic locks requires some technical comfort level beyond what traditional locks demand.
Potential Electronic Failures: Electronic components can malfunction due to moisture, extreme temperatures, or manufacturing defects (though quality models minimize these risks).
Limited Retrofit Options: Some doors may require modification to accommodate smart lock hardware, particularly older doors with non-standard dimensions.
Despite these considerations, many users find the security and convenience benefits far outweigh these potential drawbacks.
Several types of locks can be operated from both sides, each with distinct characteristics:
Double Sided Smart Locks: As detailed throughout this article, these electronic locks require authentication from either side through keypads, fingerprints, or other methods.
Double Cylinder Deadbolts: Traditional mechanical locks requiring keys on both interior and exterior sides, though these may face restrictions in some building codes.
Hotel-Style Locks: Mechanical locks with keyed access from outside and lever/knob operation from inside, though these don’t provide security against unauthorized exit.
Interconnected Locks: Combined latch and deadbolt systems that can be operated from both sides but typically allow free egress from inside.
Among these options, double sided smart locks offer the unique combination of convenience, security, and access control from both directions that make them ideal for many modern applications.
With numerous options available, use this systematic approach to identify the perfect double sided smart lock for your needs:
Double sided smart locks generally fall into three price categories:
Economy ($60-$90): Basic models like the Mechanical Button lock offer fundamental security without electronic features. These locks provide reliable operation but limited convenience features.
Mid-Range ($90-$150): The sweet spot for most users, models like the IU-20 and BOTHSTAR Keypad balance quality construction with useful features like multiple user codes and weatherproofing.
Premium ($150-$200+): Advanced models like the BOTHSTAR Fingerprint offer cutting-edge technology including biometrics, app connectivity, and extensive user management capabilities.
Consider your security requirements and convenience preferences when determining your budget, remembering that this is a long-term investment in your property’s security.
Identify which capabilities matter most for your specific situation:
Access Method Priority: Determine whether rapid access (fingerprint), code sharing (keypad), or remote management (app connectivity) is most important for your needs.
Security vs. Convenience: Higher security typically involves more authentication steps, while maximum convenience might sacrifice some security layers. Find your ideal balance.
User Management Requirements: For multi-user environments like rental properties or offices, prioritize locks with extensive user code capacity and temporary access capabilities.
Environmental Considerations: For exposed outdoor installations, weather resistance should take precedence, while indoor applications might prioritize aesthetic consistency with existing hardware.
The expected lifespan of quality double sided smart locks exceeds five years with proper maintenance, making support considerations important:
Warranty Length: Look for at least 12 months coverage, with 18-24 months indicating manufacturer confidence in reliability.
Replacement Parts Availability: Confirm that batteries, mechanical components, and electronic modules are readily available should replacement become necessary.
Firmware Update Process: For connected models, regular firmware updates indicate ongoing support and security improvements.
Customer Service Reputation: Research manufacturer responsiveness through review analysis beyond just product quality ratings.
Established manufacturers typically offer more reliable products and support:
While newer brands like BOTHSTAR have demonstrated impressive product quality, they may have less established support infrastructure than legacy security companies.
Review aggregate ratings across multiple platforms rather than relying solely on single-source reviews to gauge true customer satisfaction.
Consider how long replacement parts might remain available when evaluating lesser-known brands against market leaders.
Some locks benefit from available accessories that enhance functionality:
Wi-Fi Bridges: External devices that connect Bluetooth locks to your home network for remote access.
External Power Banks: Specialized backup power solutions designed specifically for emergency lock access.
Alternative Access Methods: Some systems offer optional RFID card/fob readers or keypad extensions.
Monitoring Sensors: Door position sensors that integrate with smart locks to provide complete access monitoring.
Evaluate whether your chosen lock supports a broader ecosystem of compatible accessories for future expansion.
Double sided smart locks represent a significant advancement in door security technology, providing unprecedented control, convenience, and protection for your property. By requiring authorized access from both sides of the door, these innovative devices eliminate vulnerabilities present in traditional locks and single-sided smart locks.
After comprehensive evaluation, we recommend these standout models for specific needs:
Best Overall Value: The IU-30 Code Door Lock delivers exceptional reliability, extensive user code capacity, and impressive weather resistance at a reasonable mid-range price point. Its proven track record across over 1,000 reviews demonstrates consistent quality and customer satisfaction.
Best for Maximum Security: The BOTHSTAR Fingerprint model provides multi-factor authentication options and advanced anti-tampering features ideal for high-security applications. Its biometric capabilities and smartphone connectivity offer both convenience and rigorous access control.
Best for Reliability: The Mechanical Button lock stands alone in requiring no power source, making it entirely immune to electronic failures or battery issues. For applications where absolute reliability trumps convenience features, this unique mechanical solution excels.
Best for Rental Properties: The BOTHSTAR Keypad model’s extensive code capacity, simple programming, and durable construction make it ideal for high-turnover environments requiring frequent access changes and robust performance.
No matter which double sided smart lock you select, you’ll benefit from significantly enhanced security and convenience compared to traditional locking systems. The peace of mind that comes from knowing your property is protected from unauthorized access from either direction is well worth the investment in these advanced security devices.
When you’re ready to upgrade your door security, simply click through our affiliate links to find current pricing and availability for these top-performing double sided smart locks. Your home or business security deserves this important upgrade in 2025 and beyond.
For further insights on smart lock technology, consider exploring these related topics:
These resources provide additional context and further explanation of the technology behind smart locks, complementing the detailed guide on how to reset smart lock.
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