both models have good performance but some points can make the difference between these two models which is
Samsung galaxy M20 have 25% more Battery Capacity
samsung galaxy have 13MP + 5 MP Camera
Android v8.1 (Oreo)
Better screen resolution.
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In 2026, both the Samsung Galaxy M20 and the Redmi Y3 are considered "legacy" devices. Choosing between them depends entirely on whether you value display and battery (Samsung) or selfies and design (Redmi).Since both phones are now quite old, here is a professional comparison to help you decide which one still holds more value for your specific needs:
The M20 is the better "utility" phone. If you need a secondary device for watching videos, browsing the web, or as a dedicated GPS/music player, this is the one.
Superior Screen: It has a 1080p (Full HD+) resolution. The Redmi Y3 only has a 720p screen, which looks noticeably "grainy" when watching YouTube or reading text.
Better Battery: With a 5,000 mAh cell, it comfortably beats the Redmi Y3 in endurance.
Convenience: It uses USB Type-C, meaning you can likely use the same charger as your modern devices. The Redmi Y3 uses the old, trapezoid-shaped Micro-USB.
The Y3 was designed as a "lifestyle" phone. If you care about looks and taking photos of yourself, go with this.
Selfie King: The 32 MP front camera was the headline feature of this phone. Even in 2026, it takes surprisingly decent selfies compared to the basic 8 MP sensor on the Samsung.
Durability: It uses Gorilla Glass 5 on the front, which is much more scratch and drop-resistant than the glass on the M20.
Aesthetics: The "Prism" back design looks much more modern and premium than the plain, glossy plastic of the Samsung.
As a peer, I have to give you a heads-up: both phones are reaching the end of their usable lives.
Software: Both are stuck on very old versions of Android (Android 10). You may find that some newer banking apps or high-end games will no longer install.
Performance: With 3GB or 4GB of older RAM, both will feel "slow" or "laggy" if you try to open heavy apps like Instagram or TikTok.
Security: Neither phone has received a security patch in years, making them slightly more vulnerable to malware if you browse risky websites.