Product
Samsung Galaxy A20
Samsung Galaxy A20
Google Pixel 3a
Google Pixel 3a
Battery
Charging 15W wired 18W wired, PD2.0
Type Li-Po 4000 mAh, non-removable Li-Po 3000 mAh, non-removable
Body
Build Glass front (Gorilla Glass 3), plastic back, plastic frame Glass front (Asahi Dragontrail), plastic back, plastic frame
Dimensions 158.4 x 74.7 x 7.8 mm (6.24 x 2.94 x 0.31 in) 151.3 x 70.1 x 8.2 mm (5.96 x 2.76 x 0.32 in)
SIM Nano-SIMNano-SIM + Nano-SIM Nano-SIM + eSIM
Weight 169 g (5.96 oz) 147 g (5.19 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE, aptX HD
NFC Yes (market/region dependent) Yes
Positioning GPS, GLONASS, BDS GPS, GLONASS, GALILEO
Radio FM radio No
USB USB Type-C 2.0, OTG USB Type-C 2.0
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
Display
Protection Corning Gorilla Glass 3 Asahi Dragontrail Glass
Resolution 720 x 1560 pixels, 19.5:9 ratio (~268 ppi density) 1080 x 2220 pixels, 18.5:9 ratio (~441 ppi density)
Size 6.4 inches, 100.5 cm2 (~85.0% screen-to-body ratio) 5.6 inches, 79.6 cm2 (~75.0% screen-to-body ratio)
Type Super AMOLED OLED
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2019, March 19 2019, May 07
Status Available. Released 2019, April 05 Available. Released 2019, May 15
Main Camera
Dual 13 MP, f/1.9, 28mm (wide), AF 5 MP, f/2.2, 12mm (ultrawide) -
Features LED flash, panorama, HDR Dual-LED flash, Pixel Shift, HDR, panorama
Single - 12.2 MP, f/1.8, 28mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS
Video 1080p@30fps 4K@30fps, 1080p@30/60/120fps
Memory
Card slot microSDXC (dedicated slot) No
Internal 32GB 3GB RAM 64GB 4GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Black, Deep Blue, Red, Coral Orange, Gold Just Black, Clearly White, Purple-ish
Models SM-A205F, SM-A205FN, SM-A205GN, SM-A205YN, SM-A205G, SM-A205W, SM-A205U, SM-A205S, SM-S205DL, SM-A205U1 G020A, G020E, G020B, G020G, G020H
SAR 1.09 W/kg (head)     0.60 W/kg (body)     -
SAR EU 0.23 W/kg (head)     1.38 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, 7, 8, 20, 38, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 32, 38, 40, 41, 66, 71
Speed HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE (3CA) Cat11 600/75 Mbps
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE
  1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71 - SM-A205U CDMA2000 1xEV-DO
Platform
Chipset Exynos 7884 (14 nm) Qualcomm SDM670 Snapdragon 670 (10 nm)
CPU Octa-core (2x1.6 GHz Cortex-A73 & 6x1.35 GHz Cortex-A53) Octa-core (2x2.0 GHz 360 Gold & 6x1.7 GHz Kryo 360 Silver)
GPU Mali-G71 MP2 Adreno 615
OS Android 9.0 (Pie), upgradable to Android 11, One UI 3.1 Android 9.0 (Pie), upgradable to Android 12
Selfie camera
Features - HDR
Single 8 MP, f/2.0 8 MP, f/2.0, 24mm (wide), 1/4.0", 1.12µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes, with stereo speakers