Product
Xiaomi Redmi 8A Dual
Xiaomi Redmi 8A Dual
Google Pixel 4a
Google Pixel 4a
Battery
Charging 18W wired 2.5W reverse wired 18W wired, PD2.0
Type Li-Po 5000 mAh Li-Po 3140 mAh
Body
Build Glass front (Gorilla Glass 5), plastic back, plastic frame Glass front (Gorilla Glass 3), plastic back, plastic frame
Dimensions 156.5 x 75.4 x 9.4 mm (6.16 x 2.97 x 0.37 in) 144 x 69.4 x 8.2 mm (5.67 x 2.73 x 0.32 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + eSIM
Weight 188 g (6.63 oz) 143 g (5.04 oz)
  Water-repellent coating -
Comms
Bluetooth 4.2, A2DP, LE 5.0, A2DP, LE, aptX HD
NFC No Yes
Positioning GPS, GLONASS, BDS GPS, GLONASS, GALILEO, QZSS, BDS
Radio FM Radio, built-in antenna No
USB USB Type-C 2.0, OTG USB Type-C 3.1
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Display
Protection Corning Gorilla Glass 5 Corning Gorilla Glass 3
Resolution 720 x 1520 pixels, 19:9 ratio (~270 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~443 ppi density)
Size 6.22 inches, 96.6 cm2 (~81.8% screen-to-body ratio) 5.81 inches, 83.2 cm2 (~83.3% screen-to-body ratio)
Type IPS LCD, 400 nits (typ) OLED, HDR
Features
Sensors Accelerometer, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2020, February 11 2020, August 03
Status Available. Released 2020, February 18 Available. Released 2020, August 20
Main Camera
Dual 13 MP, f/2.2, (wide), 1/3.1", 1.12µm, PDAF 2 MP, f/2.4, (depth) -
Features LED flash, HDR, panorama LED flash, Pixel Shift, Auto-HDR, panorama
Single - 12.2 MP, f/1.7, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS
Video 1080p@30fps 4K@30fps, 1080p@30/60/120fps; gyro-EIS
Memory
Card slot microSDXC (dedicated slot) No
Internal 32GB 2GB RAM, 32GB 3GB RAM, 64GB 3GB RAM 128GB 6GB RAM
  eMMC 5.1 UFS 2.1
Misc
Colors Sky White, Sea Blue, Midnight Grey Just Black, Barely Blue
Models M2001C3K3I G025J, GA02099, G025N
SAR 0.34 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 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 8, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 66, 71
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/75 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Platform
Chipset Qualcomm SDM439 Snapdragon 439 (12 nm) Qualcomm SDM730 Snapdragon 730G (8 nm)
CPU Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53) Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
GPU Adreno 505 Adreno 618
OS Android 9.0 (Pie), upgradable to Android 10, MIUI 12 Android 10, upgradable to Android 13
Selfie camera
Features HDR HDR
Single 8 MP, f/2.0, 1/4.0", 1.12µm 8 MP, f/2.0, 24mm (wide), 1.12µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes, with stereo speakers
Tests
Battery (old) - Endurance rating 76h
Display - 803 nits max brightness (measured)
Performance - AnTuTu: 268714 (v8)GeekBench: 6426 (v4.4), 1626 (v5.1)GFXBench: 17fps (ES 3.1 onscreen)