Side-by-side technical data
vivo X21 UD vs vivo X21i
Comparison between vivo X21 UD and vivo X21i: camera, battery, fast charging, display, performance and colors, side by side. More phones from vivo.
The verdict
Neither runs away with it: each wins something.
| Category | X21 UD | X21i |
|---|---|---|
| Design & display | 7.5 | 7.6 |
| Performance & hardware | 4.1 | 3.4 |
| Camera | 3.6 | 3.6 |
| Connectivity | 4.2 | 4.2 |
| Battery & charging | 2.7 | 3.0 |
Which one is for you?
vivo X21 UD, if you care about…
- Geekbench 6 Single-Core
- 342
- against 299
- Geekbench 6 Multi-Core
- 1,232
- against 1,155
vivo X21i, if you care about…
- Battery Capacity
- 3,425 mAh
- against 3,200 mAh
- Body Thickness
- 7 mm
- against 7.4 mm
- Max. download speed
- 603 Mbps
- against 300 Mbps
- Max. upload speed
- 102 Mbps
- against 50 Mbps
Specification comparison
Performance
| Specification | X21 UD | X21i |
|---|---|---|
| Processor Model | Qualcomm Snapdragon 660 | MediaTek Helio P60 |
| Processor Process Size | 14 nm | 12 nm Best value |
| Graphics GPU | Qualcomm Adreno 512 | Mali-G72 MP3 |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Maximum CPU Clock | 2.2 GHz Best value | 2 GHz |
| Maximum Storage Capacity | 128 GB | 128 GB |
| AnTuTu Score | — | 130,256 |
| Geekbench 6 Single-Core | 342 Best value | 299 |
| Geekbench 6 Multi-Core | 1,232 Best value | 1,155 |
| CPU Description | Octa-core: 4 × 2.2 GHz Kryo 260 Gold and 4 × 1.8 GHz Kryo 260 Silver | Octa-core CPU with four 2.0 GHz Cortex-A73 cores and four 2.0 GHz Cortex-A53 cores. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 6 GB | 6 GB |
| RAM Type | DDR4 | DDR4 |
| Expandable Storage | Yes | Yes |
| Maximum memory card | 256 GB | 256 GB |
Design
| Specification | X21 UD | X21i |
|---|---|---|
| Body Colors | Black, Red | Black, White, Red, Purple |
| Body Thickness | 7.4 mm | 7 mm Best value |
| Body Width | 74.8 mm | 75 mm |
| Body Height | 154.5 mm | 154.4 mm |
| Weight | 156.2 g Best value | 159 g |
| Usable Surface | 85.2 % Best value | 85 % |
| Body Materials | Glass, Aluminium Alloy | — |
Battery
| Specification | X21 UD | X21i |
|---|---|---|
| Battery Capacity | 3,200 mAh | 3,425 mAh Best value |
| Battery Type | Li-Ion | Li-Ion |
| Fast Charge Power | 18 W | 18 W |
| Battery Features | Fast Charging, Battery Level Indicator, Rechargeable | Fast Charging, Battery Level Indicator, Rechargeable |
Display
| Specification | X21 UD | X21i |
|---|---|---|
| Display Aspect Ratio | 19:9 | 19:9 |
| Display Technology | Super AMOLED | Super AMOLED |
| Display Diagonal | 6.28″ | 6.28″ |
| Display Horizontal Resolution | 1,080 px | 1,080 px |
| Display Vertical Resolution | 2,280 px | 2,280 px |
| Display Pixel Density | 402 ppi | 402 ppi |
| Display Features | Gorilla Glass 3, Touchscreen | Touchscreen |
Sensors
| Specification | X21 UD | X21i |
|---|---|---|
| Fingerprint Sensor Placement | Under Display | Rear |
Sensor
| Specification | X21 UD | X21i |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gyroscope | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gyroscope |
Software
| Specification | X21 UD | X21i |
|---|---|---|
| Operating System | Android 8.1 | Android 8.1 |
| OS Family | Android | Android |
| OS Version | 8 | 8 |
Connectivity
| Specification | X21 UD | X21i |
|---|---|---|
| SIM Configurations | Dual Nano-SIM | Dual Nano-SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B5, 4G LTE B8, 4G LTE B34, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B8, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41 |
| Cellular Technologies | GSM, HSPA, LTE, 4G | GSM, CDMA, HSPA, LTE |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n/ac | Wi-Fi 802.11a/b/g/n/ac |
| Wi-Fi Features | Dual Band, Wi-Fi Direct | Dual Band, Wi-Fi Direct |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, LE | A2DP, LE |
| Navigation Systems | GPS, GLONASS | GPS, GLONASS |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, microUSB, USB 2.0, USB OTG | 3.5 mm Audio Jack, FM Radio, microUSB, USB OTG |
| USB Version | microUSB | USB 2.0 |
| Max. download speed | 300 Mbps | 603 Mbps Best value |
| Max. upload speed | 50 Mbps | 102 Mbps Best value |
Audio
| Specification | X21 UD | X21i |
|---|---|---|
| Microphone Count | 2 | 2 |
| Audio Features | A2DP, LE, Loudspeaker, 32-bit/192 kHz Audio | Loudspeaker, 32-bit/192 kHz Audio |
Technical
| Specification | X21 UD | X21i |
|---|---|---|
| Model numbers | X21UD A | X21i A |
