Xiaomi Redmi Note 15 vs Samsung Galaxy A51
Quick Comparison
Both Xiaomi Redmi Note 15 and Samsung Galaxy A51 comes with same RAM. In terms of display resolution, Xiaomi Redmi Note 15 has better resolution of 2392 x 1080 than Samsung Galaxy A51 which has resolution of 2340 x 1080. Both have the same amount of internal memory.
| Name | Xiaomi Redmi Note 15 | Samsung Galaxy A51 |
| RAM | 6 GB | 6 GB |
|---|---|---|
| Display | 6.77 in | 6.5 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 5800 mAh | 4000 mAh |
| Camera | 50 MP + 2 MP Dual | 48 MP Quad |
| Price | Rs. 17990 | Rs. 17999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is August 21, 2025. The Expected cost of Xiaomi Redmi Note 15 is Rs. 17990. The launch Date of the second phone is January 29, 2020 . The cost of Samsung Galaxy A51 is Rs. 17999.
Display comparison
Samsung Galaxy A51 has screen size of 6.5 inches which falls short to Xiaomi Redmi Note 15's 6.77 inch screen. Xiaomi Redmi Note 15 has AMOLED Screen type where as Samsung Galaxy A51 has Super AMOLED Screen type. Samsung's phone has display density of 405 PPI & Xiaomi's phone has only 388 PPI display density. In terms of screen to body ratio, Xiaomi's phone has better screen to body ratio of ~ 89.1% than Samsung's phone ~ 87.4%. Xiaomi Redmi Note 15 has 20.5:9 aspect ratio where as Samsung Galaxy A51 has 20:9 aspect ratio.
Memory comparison
Both mobiles come with 6 GB RAM and both have same Internal Memory of 128 GB.
Camera comparison
Xiaomi Redmi Note 15's 50 MP + 2 MP Dual Rear Camera outclasses Samsung Galaxy A51's 48 MP Quad Rear Camera in terms of resolution. Samsung Galaxy A51 will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to Xiaomi Redmi Note 15's 8 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 15 and the second one on 10 version.
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Full Comparison
| Name | Xiaomi Redmi Note 15 | Samsung Galaxy A51 |
| General | ||
| Model | Redmi Note 15 | Galaxy A51 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | August 21, 2025 | January 29, 2020 |
| Design | ||
| Dimensions | 75.4 x 165 x 7.4 mm | 73.6 x 158.5 x 7.9 mm |
| Weight | 178 g | 172 g |
| Colors | Midnight Black, Star White, Sky Blue | |
| Display | ||
| Type | Color AMOLED Screen (68B) | Color Super AMOLED Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.77 inches, 1080 x 2392 pixels, 120 Hz | 6.5 inches, 1080 x 2340 pixels |
| Aspect Ratio | 20.5:9 | 20:9 |
| PPI | ~ 388 PPI | ~ 405 PPI |
| Screen to Body Ratio | ~ 89.1% | ~ 87.4% |
| Glass Type | Xiaomi Dragon Crystal Glass | |
| Brightness | 3200 nits (peak) | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 6 GB | 6 GB |
| Storage | 128 GB | 128 GB |
| Card Slot | Yes, upto 1 TB | Yes, upto 512 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.1, A2DP, LE | Yes, v5.0 |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | Yes | |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Compass, Proximity | Accelerometer, Gyro, Proximity, Compass |
| 3.5mm Headphone Jack | No | Yes |
| NFC | Yes | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| IP Rating | IP68 | |
| Dust Resistant | Yes | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) 2 MP (Depth Sensor) | 48 MP ƒ/2 (Wide Angle) 12 MP ƒ/2.2 (Ultra Wide) 5 MP ƒ/2.4 (Macro) Macro 5 MP ƒ/2.2 (Depth Sensor) |
| Auto Focus | Yes | Yes |
| Features | HDR, Panorama | Panorama, HDR |
| Video Recording | 1080p | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 8 MP (Wide Angle) Punch Hole, Screen Flash | 32 MP ƒ/2.2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v15 | Android v10, upgradable to v12 |
| Custom UI | MIUI15 | |
| Chipset | Qualcomm Snapdragon 6 Gen3 | Samsung Exynos 9611 |
| CPU | 2.4 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | 2xCortex-A76@2.2 GHz & 6x Cortex-A55@2.0 GHz | 4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53 |
| GPU | Adreno 710 | Mali-G72 MP3 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, AMR, FLAC, APE | Yes |
| Video | MP4, M4V, MKV, XVID | Yes |
| FM Radio | No | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5800 mAh | 4000 mAh, Li-Po Battery |
| Fast Charging | Yes, 45W Fast Charging | Yes, 15W Fast Charging |
| Reverse Charging | Yes | |