Side-by-side technical data
TCL 20B vs Realme C21
Comparison between TCL 20B and Realme C21: camera, battery, fast charging, display, performance and colors, side by side. More phones from TCL and Realme.
The verdict
Your pick: TCL 20B, ahead on Design & display and Camera. Unless Battery & charging decides it for you.
| Category | 20B | C21 |
|---|---|---|
| Design & display | 5.3 | 4.6 |
| Performance & hardware | 2.7 | 2.5 |
| Camera | 3.7 | 3.0 |
| Connectivity | 5.0 | 4.9 |
| Battery & charging | 3.8 | 5.8 |
Which one is for you?
TCL 20B, if you care about…
- Weight
- 178 g
- against 190 g
- Fast Charge Power
- 18 W
- against 10 W
- Usable Surface
- 83.4 %
- against 80.8 %
- Body Thickness
- 8 mm
- against 8.9 mm
Realme C21, if you care about…
- Battery Capacity
- 5,000 mAh
- against 4,000 mAh
- AnTuTu Score
- 110,490
- against 94,000
- Wi-Fi Standards
- Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
- against Wi-Fi 802.11 b/g/n
- Battery Features
- Fast Charging, Reverse Charging, Non-Removable, Rechargeable, Battery Level Indicator
- against Fast Charging, Non-Removable, Battery Level Indicator, Rechargeable, Charger Included
Specification comparison
Performance
| Specification | 20B | C21 |
|---|---|---|
| Processor Model | MediaTek Helio P22 | MediaTek Helio G35 |
| Processor Process Size | 12 nm | 12 nm |
| Graphics GPU | PowerVR GE8320 | PowerVR GE8320 |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Maximum CPU Clock | 1.8 GHz | 2.3 GHz Best value |
| Maximum Storage Capacity | 64 GB | 64 GB |
| AnTuTu Score | 94,000 | 110,490 Best value |
| Geekbench 6 Single-Core | 233 Best value | 189 |
| Geekbench 6 Multi-Core | 723 | 810 Best value |
| CPU Description | Octa-core Cortex-A53 CPU with four cores at 1.8 GHz and four cores at 1.5 GHz | Octa-core processor with four Cortex-A53 cores at 2.3 GHz and four Cortex-A53 cores at 1.8 GHz. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 4 GB | 4 GB |
| RAM Type | DDR4 | LPDDR4X |
| Expandable Storage | Yes | Yes |
| AnTuTu version | v8 | v8 |
Design
| Specification | 20B | C21 |
|---|---|---|
| Body Colors | Grey, Purple, Black, Blue, Green | Black, Blue |
| Body Thickness | 8 mm Best value | 8.9 mm |
| Body Width | 74.7 mm | 76.4 mm |
| Body Height | 164.7 mm | 165.2 mm |
| Weight | 178 g Best value | 190 g |
| Usable Surface | 83.4 % Best value | 80.8 % |
| Body Materials | Glass, Plastic | Glass, Plastic |
Battery
| Specification | 20B | C21 |
|---|---|---|
| Battery Capacity | 4,000 mAh | 5,000 mAh Best value |
| Battery Type | Li-Polymer | Lithium |
| Fast Charge Power | 18 W Best value | 10 W |
| Battery Features | Fast Charging, Non-Removable, Battery Level Indicator, Rechargeable, Charger Included | Fast Charging, Reverse Charging, Non-Removable, Rechargeable, Battery Level Indicator Best value |
Display
| Specification | 20B | C21 |
|---|---|---|
| Display Aspect Ratio | 20:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | — | 400 nits |
| Display Diagonal | 6.52″ Best value | 6.5″ |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,600 px | 1,600 px |
| Display Pixel Density | 269 ppi | 270 ppi Best value |
| Display Refresh Rate | — | 60 Hz |
| Touch Sampling Rate | — | 120 Hz |
| Display Contrast Ratio | — | 1,500 :1 |
| Display Features | Water Drop Notch, Scratch Resistant, Curved Glass, Capacitive Touch, Multi-Touch, Frameless, IPS LCD | IPS LCD, Water Drop Notch, TÜV Rheinland Eye Comfort Certification, Scratch Resistant, Curved Glass, Capacitive Touch, Multi-Touch, Frameless, Touchscreen |
Sensors
| Specification | 20B | C21 |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Rear |
Sensor
| Specification | 20B | C21 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Light Sensor | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gravity Sensor, Light Sensor |
Software
| Specification | 20B | C21 |
|---|---|---|
| Operating System | Android 11 | Android 10 |
| OS Family | Android | Android |
| OS Version | 11 Best value | 10 |
| Google Services | Yes | Yes |
Connectivity
| Specification | 20B | C21 |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby | Dual Nano-SIM, Dual SIM Dual Standby, Dual SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B5, 3G UMTS B8, 3G UMTS B9, 3G UMTS B19, 3G UMTS B21, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41 |
| Cellular Technologies | GSM, HSPA, UMTS, LTE, 4G | GSM, HSPA, UMTS, LTE, 4G |
| Wi-Fi Standards | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) Best value |
| Wi-Fi Features | Wi-Fi Direct, Wi-Fi Hotspot, Wi-Fi Display | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi 802.11 b/g/n |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, LE | A2DP, LE, EDR |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| Connectivity Features | USB Charging, USB Mass Storage, USB OTG, USB Type-C, NFC, 3.5 mm Audio Jack, FM Radio, Computer Sync, OTA Sync, Tethering, VoLTE | 3.5 mm Audio Jack, FM Radio, Computer Sync, OTA Sync, Tethering, VoLTE, USB Charging, USB Mass Storage, USB OTG |
| USB Version | USB 2.0 | USB 2.0 |
| SAR (EU) head | — | 0.74 W/kg |
| SAR (EU) body | — | 1.151 W/kg |
| Max. download speed | 300 Mbps Best value | 42.2 Mbps |
| Max. upload speed | 150 Mbps Best value | 5.76 Mbps |
Audio
| Specification | 20B | C21 |
|---|---|---|
| Microphone Count | — | 1 |
| Audio Features | A2DP, LE, Loudspeaker | A2DP, LE, EDR, Loudspeaker |
Technical
| Specification | 20B | C21 |
|---|---|---|
| Model numbers | 6159K | RMX3201 |
