Compare phones
| Global Score | |
| 72.8 | 77.7 |
| Basic Information | |
| OnePlus | Samsung |
| Android 15 | Android 10 |
| -- | 2020-06-19 |
| -- | 6.44 x 2.96 x 0.35 inches |
| -- | 6.77 ounces |
| -- | Black, Blue, Red and White |
| Display / Screen | |
| 7.8 inches | 6.5 inches |
| 2268 x 2440 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 427 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.7 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 8 Elite SM8550 (4 nm) chipset | Samsung Exynos 850 chipset |
| processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 16 GB RAM | 3 GB RAM |
| Yes GPU | Mali-G76 GPU |
| 6.3 | 9.09 |
| Storage | |
| 512 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 17.6 | 9.84 |
| Camera | |
| 48.00 MP + 32.00 MP | 48.00 MP + 13.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 11.99 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 5700mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.36 | 6.8 |
| Other Features | |
| Bluetooth 5.3 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
Galaxy A21s is just a bit better than OnePlus Open 2 (Rumored), getting a 77.7 score against 72.8. These phones work with Android operating system, but Galaxy A21s has an older 10 version and OnePlus Open 2 (Rumored) has Android 15. OnePlus Open 2 (Rumored) has just a bit better screen than Samsung Galaxy A21s, because it has a lot better resolution of 2440 x 2268 pixels, a bigger screen and a lot greater display pixel density.
The OnePlus Open 2 (Rumored) features much more storage capacity to store more apps and games than Galaxy A21s, because although it has no SD memory card expansion slot, it also counts with 480 GB more internal storage capacity. The Galaxy A21s features a much better processing power than OnePlus Open 2 (Rumored), although it has a lower amount of RAM, they both have the same number of cores.
The OnePlus Open 2 (Rumored) features a better camera than Galaxy A21s, and although they both have a same size sensor and a same resolution camera in the back, the OnePlus Open 2 (Rumored) also has a larger camera aperture and a lot better 3840x2160 (4K) video quality. OnePlus Open 2 (Rumored) features a bit superior battery lifetime than Galaxy A21s, because it has a 14 percent greater battery capacity.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.