RAYKUBE M5 Smart Lock Review: A $48 Fingerprint Lock Worth It?

Most people still use a key they've had for years. That might be worth changing.

Not because keys are broken, but because they're the weakest link in how most of us secure our front doors. You lend one to a friend and forget. You lose one and don't bother changing the lock. You stand outside fumbling in the dark with bags in both hands. These are small, recurring annoyances - the kind you adapt to instead of solving.

I came across the RAYKUBE M5 while looking into budget smart locks. At around $48 after a 69% discount, I was skeptical. Smart locks with fingerprint readers, Bluetooth app control, IC card access, and a backup key system don't usually show up at this price with positive reviews attached. But they do here.

Here's my honest take after digging into the specs and real buyer feedback.

Honest Review: What the RAYKUBE M5 Actually Delivers

The M5 runs on Tuya's BLE ecosystem, which means it connects via Bluetooth and works with the Smart Life or Tuya Smart apps. You do not need a Wi-Fi bridge for basic operation - Bluetooth alone handles fingerprint registration, code management, and IC card setup directly from your phone. If you want remote control from outside your home, you'd need to add a Wi-Fi gateway separately, which is worth knowing before you buy.

The fingerprint reader is the standout feature here. Multiple buyers note that fingerprint registration is easier and more accurate than comparable budget locks they'd used before. Response time is roughly half a second - not instant, but close enough that it doesn't feel slow in daily use. The handle feels solid, not flimsy, which matters when you're touching it multiple times a day.

Power comes from 4 AAA batteries. No wiring required, which makes installation realistic for renters or anyone putting this on an interior door, office, or secondary entrance. The manual is video-based, and the general feedback is that installation is straightforward if you follow it carefully.

Access methods: fingerprint, PIN code, IC card (3 included), physical key (2 included), and app. That redundancy is genuinely useful - if your phone dies or the batteries run low, you're not locked out.

Now, the honest limitation: a few buyers mentioned difficulty with the interior cylinder fitting during installation. It is not a common complaint, but it is real. If you are not comfortable with basic hardware installation or do not have someone to help, that friction could turn a simple job into a frustrating one. The product works once set up, but getting there may require patience.

What surprised me is that the app integration actually works consistently once paired. In budget smart home products, app reliability is often where things fall apart - here it seems to hold up.

What Would You Normally Get at This Price?

Price: $48 (was $156) - 69% off.

At $48, the realistic alternatives are basic electronic keypads with PIN only - no fingerprint, no app, no IC card. Anything with genuine fingerprint recognition and app control from a recognizable brand starts closer to $100, and established names like Schlage or Yale smart locks run $150 to $200 for comparable functionality.

The RAYKUBE M5 is not competing with those brands on build quality guarantees or customer support infrastructure. What it is competing on is features-per-dollar, and on that measure it is genuinely hard to beat at this price point.

Worth noting that this is designed for standard residential doors, apartment units, office doors, and interior applications - not high-security exterior doors that face serious risk exposure.

Buy It If / Skip It If

Buy it if:

• You want fingerprint and app access without spending $150 or more.
• You are already using Smart Life or Tuya at home and want everything integrated.
• You need multiple entry methods - useful for families, Airbnb hosts, or shared offices.
• You are putting this on an apartment door, interior door, or low-to-medium security application.

Skip it if:

• You need remote control without a separate Wi-Fi bridge purchase.
• You are not comfortable with basic installation and have no one to help.
• You want the support, warranty, and build quality assurance of an established European or North American brand.
• This is going on a high-security exterior door where you are not willing to compromise on lock certification.

Verdict: At $48, the RAYKUBE M5 punches well above its price. The fingerprint accuracy, the redundant entry methods, and the Tuya ecosystem integration are genuine strengths. The installation quirk is real but manageable. If your use case fits - and for most apartments and office doors it does - it is hard to find a reason to spend three times more for similar functionality.

Check current price and availability here: https://www.ali-ex.com/DN1G4J