Google Pixel 3a vs Samsung Galaxy A20 Dual SIM
| Type | Touch | Touch | 
| Dimensions | 151.30 x 70.10 x 8.20 mm | 158.40 x 74.70 x 7.80 mm | 
| Weight | 147.00 g | 169.00 g | 
| Display size | 5.60" | 6.40" | 
| Display | Color / OLED 16M colors 1080 x 2220 px (5.60") 441 ppi | Color / Super AMOLED 16M colors 720 x 1560 px (6.40") 268 ppi | 
| Display protection | ||
| Additional display | ||
| Protection of the secondary display | ||
| Talk time (max.) | 3G: 1920 min. (32.0 h) | 3G: 1560 min. (26.0 h) | 
| Stand-by (max.) | 3G: 312 h. (13.0 days) | |
| Playback time (max.) | nd | Audio: 82 h (3.4 days) Video: 21 h (0.9 days) | 
| Internet browsing time (max.) | nd | WiFi: 13 h (0.5 days) 3G: 12 h (0.5 days) 4G: 13 h (0.5 days) | 
| Standard battery | Li-Ion 3000 mAhBuy powerbank | Li-Ion 4000 mAhBuy powerbank | 
| Quick battery charging | ||
| Wireless battery charging | ||
| Internal memory | 64 GB | 32 GB | 
| End-user memory | 21.7 GB | |
| RAM memory | 4 GB | 3 GB | 
| Memory cards | microSD, microSDHC, microSDXC up to 512 GBBuy memory card | |
| Operating system | Android 9.0 Pie | Android 9.0 Pie | 
| Processor | Qualcomm Snapdragon 670 | Samsung Exynos 7884 | 
| Processor clock | 2000 MHz | 1600 MHz | 
| GPU | Adreno 615 | - | 
| Touchscreen | ||
| DualSIM | ||
| SIM cards standard | SingleSIM(nanoSIM) | DualSIM(nanoSIM, nanoSIM) | 
| DualSIM mode | nd | dual standby | 
| Announced | 2Q 2019 | 1Q 2019 | 
| Other names | G020A; G020E | SM-A205F/DS | 
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 | 
| UMTS | 850 900 1700 1900 2100 | 850 900 1900 2100 | 
| LTE standard | FDD LTE: 2100, 1900, 1800, 1700, 1500, 900, 850, 800, 700 TDD LTE: 2500, 2300 | FDD LTE: 2600, 2100, 1800, 900, 850, 800 TDD LTE: 2600, 2500, 2300 | 
| CDMA | 850 1900 | |
| Standard TD-SCDMA | ||
| UMA | 
 
            
