Side-by-side technical data
vivo V15 vs vivo X21 UD
Comparison between vivo V15 and vivo X21 UD: 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 | V15 | X21 UD |
|---|---|---|
| Design & display | 5.8 | 7.5 |
| Performance & hardware | 3.4 | 4.1 |
| Camera | 4.5 | 3.6 |
| Connectivity | 4.1 | 4.2 |
| Battery & charging | 3.7 | 2.7 |
Which one is for you?
vivo V15, if you care about…
- Battery Capacity
- 4,000 mAh
- against 3,200 mAh
- Display Diagonal
- 6.53″
- against 6.28″
- OS Version
- 9
- against 8
vivo X21 UD, if you care about…
- Display Technology
- Super AMOLED
- against IPS LCD
- Bluetooth Version
- Bluetooth 5.0
- against Bluetooth 4.2
- Weight
- 156.2 g
- against 189.5 g
- Body Thickness
- 7.4 mm
- against 8.5 mm
Specification comparison
Performance
| Specification | V15 | X21 UD |
|---|---|---|
| Processor Model | MediaTek Helio P70 | Qualcomm Snapdragon 660 |
| Processor Process Size | 12 nm Best value | 14 nm |
| Graphics GPU | Mali-G72 MP3 | Qualcomm Adreno 512 |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Maximum CPU Clock | 2.1 GHz | 2.2 GHz Best value |
| Maximum Storage Capacity | 128 GB | 128 GB |
| AnTuTu Score | 179,640 | — |
| Geekbench 6 Single-Core | 329 | 342 Best value |
| Geekbench 6 Multi-Core | 1,066 | 1,232 Best value |
| CPU Description | Octa-core (4×2.1 GHz Cortex-A73 and 4×2.0 GHz Cortex-A53) | Octa-core: 4 × 2.2 GHz Kryo 260 Gold and 4 × 1.8 GHz Kryo 260 Silver |
| 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 | V15 | X21 UD |
|---|---|---|
| Body Colors | Blue, Red, Black | Black, Red |
| Body Thickness | 8.5 mm | 7.4 mm Best value |
| Body Width | 75.9 mm | 74.8 mm |
| Body Height | 161.2 mm | 154.5 mm |
| Weight | 189.5 g | 156.2 g Best value |
| Usable Surface | 85.6 % Best value | 85.2 % |
| Body Materials | Glass, Plastic | Glass, Aluminium Alloy Best value |
Battery
| Specification | V15 | X21 UD |
|---|---|---|
| Battery Capacity | 4,000 mAh Best value | 3,200 mAh |
| Battery Type | — | Li-Ion |
| Fast Charge Power | 18 W | 18 W |
| Battery Features | Battery Level Indicator, Fast Charging, Rechargeable | Fast Charging, Battery Level Indicator, Rechargeable |
Display
| Specification | V15 | X21 UD |
|---|---|---|
| Display Aspect Ratio | 19.5:9 | 19:9 |
| Display Technology | IPS LCD | Super AMOLED Best value |
| Display Diagonal | 6.53″ Best value | 6.28″ |
| Display Horizontal Resolution | 1,080 px | 1,080 px |
| Display Vertical Resolution | 2,340 px Best value | 2,280 px |
| Display Pixel Density | 395 ppi | 402 ppi Best value |
| Display Features | Gorilla Glass 5, Touchscreen | Gorilla Glass 3, Touchscreen |
Sensors
| Specification | V15 | X21 UD |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Under Display |
Sensor
| Specification | V15 | X21 UD |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gyroscope |
Software
| Specification | V15 | X21 UD |
|---|---|---|
| Operating System | Android 9 | Android 8.1 |
| OS Family | Android | Android |
| OS Version | 9 Best value | 8 |
Connectivity
| Specification | V15 | X21 UD |
|---|---|---|
| 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 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B38, 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 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 |
| Cellular Technologies | GSM, HSPA, LTE, 4G | GSM, HSPA, LTE, 4G |
| 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/n/ac |
| Wi-Fi Features | Dual Band, Wi-Fi Direct | Dual Band, Wi-Fi Direct |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 Best value |
| Bluetooth Profiles | A2DP, LE | A2DP, LE |
| Navigation Systems | GPS, GLONASS, BeiDou Best value | GPS, GLONASS |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, microUSB, USB OTG | 3.5 mm Audio Jack, FM Radio, microUSB, USB 2.0, USB OTG |
| USB Version | microUSB | microUSB |
| Max. download speed | 300 Mbps | 300 Mbps |
| Max. upload speed | 50 Mbps | 50 Mbps |
Audio
| Specification | V15 | X21 UD |
|---|---|---|
| Microphone Count | 2 | 2 |
| Audio Features | Loudspeaker | A2DP, LE, Loudspeaker, 32-bit/192 kHz Audio |
Technical
| Specification | V15 | X21 UD |
|---|---|---|
| Model numbers | 1819 | X21UD A |
