Samsung Galaxy A51 5G vs Xiaomi Redmi Note 15

Key Specs
Display 6.5"
Battery 4000 mAh
Camera 48 MP + 12 MP + 5 MP + 5 MP
Storage 256 GB 8 GB RAM
Network
TechnologyGSM / HSPA / LTE / 5G
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bandsHSDPA 850 / 900 / 1900 / 2100
 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bandsLTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100)
5G5G SA/NSA
SpeedHSPA, LTE-A, 5G
Launch
AnnouncedNot announced yet
StatusRumored
Body
Dimensions-
Weight-
BuildGlass front (Gorilla Glass 3), plastic back, plastic frame
SIMSingle SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Display for Samsung Galaxy A51 5G
TypeSuper AMOLED capacitive touchscreen, 16M colors
Size6.5 inches, 102.0 cm2
Resolution1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
ProtectionCorning Gorilla Glass 3
Platform
OSAndroid 10.0; One UI 2
ChipsetExynos 980 (8 nm)
CPUOcta-core (2x2.2 GHz Cortex-A77 & 6x1.8 GHz Cortex A55)
GPUMali-G76 MP5
Memory
Card slotmicroSDXC (dedicated slot)
Internal128GB 4GB RAM, 128GB 6GB RAM, 256GB 8GB RAM
 UFS 2.0
Main Camera
Quad48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8痠, PDAF
12 MP, f/2.2, 12mm (ultrawide)
5 MP, f/2.4, 25mm (macro), 1/5.0", 1.12痠
5 MP, f/2.2, (depth)
FeaturesLED flash, panorama, HDR
Video2160p@30fps, 1080p@30/120fps; gyro-EIS
Selfie camera
Single32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8痠
FeaturesHDR
Video1080p@30fps
Sound
Loudspeaker Yes
3.5mm jack Yes
Comms
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth5.0, A2DP, LE
GPSYes, with A-GPS, GLONASS, GALILEO, BDS
NFCYes
RadioFM radio
USB2.0, Type-C 1.0 reversible connector, USB On-The-Go
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 ANT+
Battery
 
ChargingFast charging
space
Key Specs
Display 6.77""
Battery 6000 mAh
Camera 108 MP + 2 MP
Storage 128GB Built-in
Network
Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE
Launch
Announced 2025, December 18
Status Available Released 2026, March 25
Body
Dimensions 164 x 75.4 x 7.9 mm (6.46 x 2.97 x 0.31 in)
Weight 183.7 g (6.49 oz)
SIM Nano-SIM + Nano-SIM
 IP64 dust tight and water resistant (water splashes)
Display for Xiaomi Redmi Note 15
Type AMOLED, 68B colors, 120Hz, 3840Hz PWM, 3200 nits (peak)
Size 6.77 inches, 110.9 cm2 (~89.7% screen-to-body ratio)
Resolution 1080 x 2392 pixels (~388 ppi density)
Protection Mohs level 5
Platform
OS Android 15, up to 4 major Android upgrades, HyperOS 2
Chipset Mediatek Helio G100 Ultra (6 nm)
CPU Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G57 MC2
Memory
Card slot microSDXC (uses shared SIM slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM, 512GB 8GB RAM
Main Camera
Dual 108 MP, f/1.7, 24mm (wide), 1/1.67", 0.64µm, PDAF
Auxiliary lens
Features LED flash, HDR, panorama
Video 1080p@30/60fps
Selfie camera
Single 20 MP, f/2.2, (wide), 1/4.0", 0.7µm
Video 1080p@30fps
Sound
Loudspeaker Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack No
 24-bit/192kHz Hi-Res audio
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.3, A2DP, LE
Positioning GPS, GALILEO, GLONASS, QZSS, BDS
NFC Yes (market/region dependent)
Radio No
USB USB Type-C 2.0, OTG
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, compass, proximity
Battery
Type 6000 mAh
Charging 33W wired
18W reverse wired
Misc
Colors Black, Forest Green, Glacier Blue, Purple