Both Xiaomi Redmi 15 5G and Samsung Galaxy A51 comes with same RAM. Both have the same amount of internal memory.
| Name | Xiaomi Redmi 15 5G | Samsung Galaxy A51 |
| RAM | 6 GB | 6 GB |
|---|---|---|
| Display | 6.9 in | 6.5 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 7000 mAh | 4000 mAh |
| Camera | 50 MP Dual | 48 MP Quad |
| Price | Rs. 18499 | Rs. 17999 |
The launch Date of the first phone is August 01, 2025. The cost of Xiaomi Redmi 15 5G is Rs. 18499. The launch Date of the second phone is January 29, 2020 . The cost of Samsung Galaxy A51 is Rs. 17999.
Samsung Galaxy A51 has screen size of 6.5 inches which falls short to Xiaomi Redmi 15 5G's 6.9 inch screen. Xiaomi Redmi 15 5G has IPS 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 374 PPI display density. In terms of screen to body ratio, Samsung's phone has better screen to body ratio of ~ 87.4% than Xiaomi's phone ~ 83.2%. Xiaomi Redmi 15 5G has 20.6:9 aspect ratio where as Samsung Galaxy A51 has 20:9 aspect ratio.
Both mobiles come with 6 GB RAM and both have same Internal Memory of 128 GB.
Xiaomi Redmi 15 5G's 50 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 15 5G's 8 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 15 and the second one on 10 version.
| Name | Xiaomi Redmi 15 5G | Samsung Galaxy A51 |
| General | ||
| Country of Origin | India | |
| Model | 15 5G | Galaxy A51 |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| OS Updates | 2 years | |
| Security Updates | 4 years | |
| Release Date | August 01, 2025 | January 29, 2020 |
| In The Box | Mobile Phone * 1, Adapter * 1, USB Type-C cable * 1, SIM Eject Tool * 1, Quick Start Guide, & Warranty Card * 1, Safety Information * 1 | |
| Design | ||
| Dimensions | 80.45 x 168.48 x 8.4 mm | 73.6 x 158.5 x 7.9 mm |
| Weight | 217 g | 172 g |
| Colors | Sandy Purple, Frosted White, Midnight Black | |
| Display | ||
| Type | Color IPS Screen (16M Colors) | Color Super AMOLED Screen (16M Colors) |
| Touch | Yes, 288 Hz Touch Sampling Rate | Yes |
| Size | 6.9 inches, 1080 x 2340 pixels, 144 Hz | 6.5 inches, 1080 x 2340 pixels |
| Aspect Ratio | 20.6:9 | 20:9 |
| PPI | ~ 374 PPI | ~ 405 PPI |
| Screen to Body Ratio | ~ 83.2% | ~ 87.4% |
| Brightness | 850nits Peak Brightness | |
| Features | TÜV Rheinland Circadian Friendly, TÜV Rheinland flicker free, TÜV Rheinland Low Blue light | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 6 GB | 6 GB |
| RAM Type | LPDDR4X | |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.2 | |
| Card Slot | Yes, (Hybrid Slot), upto 1 TB | Yes, upto 512 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | SA: n1/n3/n5/n8/n28/n40/n78, NSA: n1/n3/n40/n78/n8 | |
| VoLTE | Yes | 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 | 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, Beidou | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes, Side | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Ambient Light Sensor, Proximity Sensor (Virtual), E Compass, Accelerometer | Accelerometer, Gyro, Proximity, Compass |
| 3.5mm Headphone Jack | Yes | |
| AI Features | Circle to Search, Gemini AI, AI Erase | |
| Splash Resistant | Yes | |
| IP Rating | IP64 | |
| Dust Resistant | Yes | |
| Extra Features | Hydro Touch | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.75 (Wide Angle) | 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 | AI Sky, AI Erase, Classic Film Filters | Panorama, HDR |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 8 MP ƒ/2.2 (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 | HyperOS 2 | |
| Chipset | Qualcomm Snapdragon 6s Gen3 | Samsung Exynos 9611 |
| CPU | 2.3 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | 2x2.3 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55 | 4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53 |
| GPU | Adreno 619 | Mali-G72 MP3 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | Yes | Yes |
| Speaker Type | Bottom Firing Loud Speaker | |
| Audio Features | Dolby Certified, 200% Super Volume | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7000 mAh, Si-C EV-Grade Technology | 4000 mAh, Li-Po Battery |
| Fast Charging | Yes, 33W | Yes, 15W Fast Charging |
| Reverse Charging | Yes, 18W | |