Oppo A91 Global vs Oppo A53 2020
| Type | Touch | Touch | 
| Dimensions | 160.20 x 73.30 x 7.90 mm | 163.90 x 75.10 x 8.40 mm | 
| Weight | 172.00 g | 186.00 g | 
| Display size | 6.40" | 6.50" | 
| Display | Color / AMOLED 16M colors 60 Hz 1080 x 2400 px (6.40") 411 ppi | Color / IPS TFT 16M colors 90 Hz 720 x 1600 px (6.50") 270 ppi | 
| Display protection | Corning Gorilla GlassBuy screen protector | |
| Additional display | ||
| Protection of the secondary display | ||
| Standard battery | Li-Po 4025 mAhBuy powerbank | Li-Ion 5000 mAhBuy powerbank | 
| Quick battery charging | VOOC 3.0 | |
| Wireless battery charging | ||
| Internal memory | 128 GB | 64 GB, 128 GB | 
| RAM memory | 8 GB | 4 GB, 6 GB | 
| Memory cards | microSD, microSDHC, microSDXC up to 256 GBBuy memory card | microSD, microSDHC, microSDXC up to 256 GBBuy memory card | 
| Operating system | Android 9.0 Pie | Android 10 | 
| Interface | ColorOS 6.1.2 | ColorOS 7.2 | 
| Processor | MediaTek Helio P70 MT6771T | Qualcomm | 
| Processor clock | 2100 MHz | 1800 MHz | 
| GPU | ARM Mali-G72 MP3 | - | 
| Touchscreen | ||
| DualSIM | ||
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) | 
| DualSIM mode | dual standby | dual standby | 
| Hybrid DualSIM | ||
| Announced | 4Q 2019 | 3Q 2020 | 
| Other names | CPH2001; CPH2021 | CPH2127 | 
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 | 
| UMTS | 850 1700 1900 2100 | 900 2100 | 
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300 | |
| Standard 5G | ||
| CDMA | 850 | |
| Standard TD-SCDMA | 1900 2000 | |
| UMA | 
 
            
