Product
Xiaomi Redmi A1
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Samsung Galaxy A21
Samsung Galaxy A21
₹6,823
Battery
Charging 10W wired 15W wired
Type Li-Po 5000 mAh Li-Po 4000 mAh
Body
Build - Glass front, plastic back, plastic frame
Dimensions 164.9 x 76.8 x 9.1 mm (6.49 x 3.02 x 0.36 in) 167.8 x 76.7 x 8.1 mm (6.61 x 3.02 x 0.32 in)
SIM Nano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 192 g (6.77 oz) 193 g (6.81 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
NFC No Yes (market/region dependent)
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, BDS
Radio FM radio FM radio
USB microUSB 2.0 USB Type-C 2.0
WLAN Wi-Fi 802.11 a/b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Resolution 720 x 1600 pixels, 20:9 ratio (~269 ppi density) 720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Size 6.52 inches, 102.6 cm2 (~81.0% screen-to-body ratio) 6.5 inches, 102.0 cm2 (~79.3% screen-to-body ratio)
Type IPS LCD, 400 nits (typ) IPS LCD
Features
Sensors Accelerometer Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2022, September 06 2020, April 08
Status Available. Released 2022, September 09 Available. Released 2020, June 26
Main Camera
Features Dual-LED flash, HDR LED flash, panorama, HDR
Quad - 16 MP, f/1.8, (wide), 1/3.06", 1.0µm, PDAF 8 MP, f/2.2, (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth)
Single 8 MP, f/2.0, (wide) 0.08 MP (auxiliary lens) -
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 32GB 2GB RAM, 32GB 3GB RAM 32GB 3GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Light Green, Light Blue, Black Black
Models 220733SI, 220733SG, 220733SL, 220743FI, 220733SH SM-A215U, SM-A215U1, SM-S215DL, SM-A215W
SAR 1.10 W/kg (head)     1.03 W/kg (body)     1.27 W/kg (head)     0.60 W/kg (body)    
SAR EU 0.85 W/kg (head)     1.00 W/kg (body)     -
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA
4G bands 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71 - USA
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE
  1, 3, 5, 8, 40, 41 - India CDMA2000 1xEV-DO
Platform
Chipset Mediatek MT6761 Helio A22 (12 nm) Mediatek MT6765 Helio P35 (12 nm)
CPU Quad-core 2.0 GHz Cortex-A53 Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU PowerVR GE8320 PowerVR GE8320
OS Android 12 (Go edition), MIUI 12 Android 10, One UI 2.0
Selfie camera
Single 5 MP, f/2.2 13 MP, f/2.0, (wide), 1/3.1", 1.12µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
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