Realme
Side-by-side technical data
Realme V21 vs Realme C100x
Compare up to four phones using typed, normalized technical data. Measurements stay numeric, capabilities stay boolean, and options stay comparable.
The verdict
Neither runs away with it: each wins something.
Which one is for you?
Realme V21, if you care about…
- RAM Capacity
- 8 GB
- against 6 GB
- Display Pixel Density
- 269 ppi
- against 254 ppi
Realme C100x, if you care about…
- Battery Capacity
- 8,000 mAh
- against 5,000 mAh
- Display Technology
- IPS LCD
- against TFT LCD
- Bluetooth Version
- Bluetooth 5.2
- against Bluetooth 5.0
- Maximum Storage Capacity
- 256 GB
- against 128 GB
Specification comparison
Performance
| Specification | V21 | C100x |
|---|---|---|
| Processor Model | — | Unisoc T7250 |
| Processor Process Size | — | 12 nm |
| Graphics GPU | — | Mali-G57 MP1 |
| Storage Type | — | eMMC 5.1 |
| Maximum CPU Clock | 2.2 GHz Best value | 1.8 GHz |
| Maximum Storage Capacity | 128 GB | 256 GB Best value |
| AnTuTu Score | — | 308,681 |
| Geekbench 6 Single-Core | — | 437 |
| Geekbench 6 Multi-Core | — | 1,461 |
| CPU Description | Octa-core processor clocked at 2.2 GHz | Octa-core processor with 2 Cortex-A75 cores at 1.8 GHz and 6 Cortex-A55 cores at 1.6 GHz. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | — | Yes |
| RAM Capacity | 8 GB Best value | 6 GB |
| RAM Type | — | LPDDR4X |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | v10 |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Design
| Specification | V21 | C100x |
|---|---|---|
| Body Colors | Black, Blue | Gold, Blue, Purple |
| Body Thickness | — | 8.6 mm |
| Body Width | — | 78.2 mm |
| Body Height | — | 166.5 mm |
| Weight | — | 219 g |
| Usable Surface | — | 86.8 % |
| Body Materials | — | Glass, Plastic |
| Resistance Features | — | IP64, MIL-STD-810H |
| Waterproof Depth | — | 2 m |
| Drop Resistance Class | — | B |
| Repairability Class | — | C |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | 240 |
| Unfolded thickness | — | — |
| QWERTY keyboard | — | — |
Battery
| Specification | V21 | C100x |
|---|---|---|
| Battery Efficiency Rating | — | A |
| Battery Capacity | 5,000 mAh | 8,000 mAh Best value |
| Battery Type | — | Si-Carbon Li-Ion |
| Fast Charge Power | — | 45 W |
| Battery Features | — | Fast Charging, Reverse Charging, Non-Removable, Battery Level Indicator, Charger Included, Rechargeable |
| Battery Endurance | — | 90 h |
| Wireless charging power | — | — |
| Charge cycles | — | 1,600 |
| Talk time | — | — |
| Standby time | — | — |
| Music playback time | — | — |
| Reverse wireless charging power | — | — |
Display
| Specification | V21 | C100x |
|---|---|---|
| Display Aspect Ratio | 20:9 | 19.5:9 |
| Display Technology | TFT LCD | IPS LCD Best value |
| Peak Display Brightness | — | 900 nits |
| Display Diagonal | 6.56″ | 6.8″ Best value |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,612 px Best value | 1,570 px |
| Display Pixel Density | 269 ppi Best value | 254 ppi |
| Display Refresh Rate | — | 120 Hz |
| Touch Sampling Rate | — | 240 Hz |
| Display Contrast Ratio | — | — |
| Display Features | — | Panda Glass, Mohs Level 5, Water Drop Notch, Capacitive Touch, Multi-Touch, Frameless |
| Integrated Projector | No | No |
| Projector Brightness | — | — |
| Projector Horizontal Resolution | — | — |
| Projector Vertical Resolution | — | — |
| Cover display diagonal | — | — |
| Cover display refresh rate | — | — |
| Cover display peak brightness | — | — |
| Display colors | — | — |
Sensors
| Specification | V21 | C100x |
|---|---|---|
| Fingerprint Sensor Placement | Side | Side |
Sensor
| Specification | V21 | C100x |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gyroscope, Light Sensor |
Software
| Specification | V21 | C100x |
|---|---|---|
| Operating System | Android 12 | Android 16 |
| OS Family | Android | Android |
| OS Version | 12 | 16 Best value |
| OS Update Support | — | 5 years |
| Direct OS Updates | — | No |
| Google Services | — | Yes |
| Web browser | — | — |
| Java (J2ME) | — | — |
| Widevine L1 | — | — |
Connectivity
| Specification | V21 | C100x |
|---|---|---|
| SIM Configurations | Dual Nano-SIM | Dual Nano-SIM, Dual SIM Dual Standby |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 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, CDMA, HSPA, LTE | GSM, HSPA, LTE |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n/ac | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 802.11a/b/g |
| Wi-Fi Features | Dual Band, Wi-Fi Direct | Dual Band, Wi-Fi Hotspot |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.2 Best value |
| Bluetooth Profiles | A2DP, LE, aptX HD | A2DP, LE |
| Navigation Systems | GPS, GLONASS, Galileo, BeiDou, QZSS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| Connectivity Features | 3.5 mm Audio Jack, USB Type-C, USB 2.0, USB OTG | USB Charging, USB Mass Storage, USB OTG, USB Host 2.0, USB Type-C, NFC, 3.5 mm Audio Jack, Computer Sync, OTA Sync, Tethering |
| USB Version | USB 2.0 | USB 2.0 |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
| Max. download speed | — | 300 Mbps |
| Max. upload speed | — | 150 Mbps |
Audio
| Specification | V21 | C100x |
|---|---|---|
| Microphone Count | — | — |
| Audio Features | aptX HD, Loudspeaker | A2DP, LE, Stereo Speakers Best value |
| Alert types | — | — |
Technical
| Specification | V21 | C100x |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | V21 | C100x |
|---|---|---|
| Built-in functions | — | — |
