Side-by-side technical data
vivo iQOO U3x vs vivo Y51s
Comparison between vivo iQOO U3x and vivo Y51s: camera, battery, fast charging, display, performance and colors, side by side. More phones from vivo.
The verdict
Your pick: vivo iQOO U3x, ahead on Design & display, Connectivity and Battery & charging. Unless Performance & hardware or Camera decides it for you.
| Category | iQOO U3x | Y51s |
|---|---|---|
| Design & display | 6.2 | 5.6 |
| Performance & hardware | 3.7 | 4.3 |
| Camera | 3.0 | 3.8 |
| Connectivity | 6.4 | 5.3 |
| Battery & charging | 5.4 | 4.6 |
Which one is for you?
vivo iQOO U3x, if you care about…
- Battery Capacity
- 5,000 mAh
- against 4,500 mAh
- Wi-Fi Standards
- Wi-Fi 802.11a/b/g/n/ac/6
- against Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
- Bluetooth Version
- Bluetooth 5.1
- against Bluetooth 5.0
- Display Refresh Rate
- 90 Hz
- against 60 Hz
vivo Y51s, if you care about…
- AnTuTu Score
- 288,100
- against 200,000
Specification comparison
Performance
| Specification | iQOO U3x | Y51s |
|---|---|---|
| Processor Model | Qualcomm SM4350 Snapdragon 480 5G | Samsung Exynos 880 |
| Processor Process Size | 8 nm | 8 nm |
| Graphics GPU | Qualcomm Adreno 619 | Mali-G76 MP5 |
| Storage Type | UFS 2.1 | UFS 2.1 |
| Maximum CPU Clock | 2 GHz | 2 GHz |
| Maximum Storage Capacity | 128 GB | 128 GB |
| AnTuTu Score | 200,000 | 288,100 Best value |
| CPU Description | Octa-core CPU with 2x Kryo 460 at 2.0 GHz and 6x Kryo 460 at 1.8 GHz. | Octa-core processor with 2x Cortex-A77 at 2.0 GHz and 6x Cortex-A55 at 1.8 GHz. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 8 GB | 8 GB |
| RAM Type | LPDDR4X | LPDDR4X |
| AnTuTu version | v8 | v8 |
Design
| Specification | iQOO U3x | Y51s |
|---|---|---|
| Body Colors | Grey, Aurora, Black, White | Black, Blue, White |
| Body Thickness | 8.4 mm Best value | 8.5 mm |
| Body Width | 75.4 mm | 76.6 mm |
| Body Height | 164.2 mm | 162 mm |
| Weight | 185.5 g Best value | 190 g |
| Usable Surface | 84.2 % | 84.4 % Best value |
| Body Materials | Plastic | Plastic |
Battery
| Specification | iQOO U3x | Y51s |
|---|---|---|
| Battery Capacity | 5,000 mAh Best value | 4,500 mAh |
| Battery Type | Li-Ion | Li-Polymer |
| Fast Charge Power | 18 W | 18 W |
| Battery Features | Fast Charging, Non-Removable | Non-Removable, Fast Charging, Rechargeable, Battery Level Indicator |
Display
| Specification | iQOO U3x | Y51s |
|---|---|---|
| Display Aspect Ratio | 20:9 | 19.5:9 |
| Display Technology | IPS LCD | IPS LCD |
| Display Diagonal | 6.58″ Best value | 6.53″ |
| Display Horizontal Resolution | 1,080 px | 1,080 px |
| Display Vertical Resolution | 2,408 px Best value | 2,340 px |
| Display Pixel Density | 401 ppi Best value | 395 ppi |
| Display Refresh Rate | 90 Hz Best value | 60 Hz |
| Display Contrast Ratio | 1,500 :1 | 1,500 :1 |
| Display Features | IPS LCD, Water Drop Notch, Scratch Resistant, Curved Glass, Capacitive Touch, Multi-Touch, 90Hz | Hole-Punch Notch, Curved Glass, Capacitive Touch, Multi-Touch, Frameless, Touchscreen |
Sensors
| Specification | iQOO U3x | Y51s |
|---|---|---|
| Fingerprint Sensor Placement | Side | Side |
Sensor
| Specification | iQOO U3x | Y51s |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gyroscope, Light Sensor | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gyroscope, Light Sensor, Cooling System |
Software
| Specification | iQOO U3x | Y51s |
|---|---|---|
| Operating System | Android 11 | Android 10 |
| OS Family | Android | Android |
| OS Version | 11 Best value | 10 |
Connectivity
| Specification | iQOO U3x | Y51s |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby | Dual Nano-SIM, Dual SIM Dual Standby |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 2G CDMA BC0, 3G UMTS 1700 AWS, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 3G UMTS B34, 3G UMTS B39, 4G LTE B1, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B8, LTE B28, 4G LTE B34, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 4G LTE B7, 4G LTE B20, 5G NR n1, 5G NR n3, 5G NR n28, 5G NR n41, 5G NR n77, 5G NR n78 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B3, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B8, 4G LTE B34, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 5G NR n1, 5G NR n41, 5G NR n78 |
| Cellular Technologies | GSM, CDMA, HSPA, CDMA2000, LTE, 5G | GSM, CDMA, HSPA, LTE, 5G |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n/ac/6 Best value | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display |
| Bluetooth Version | Bluetooth 5.1 Best value | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, LE, aptX HD | A2DP, LE, aptX HD |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| Connectivity Features | 3.5 mm Audio Jack, USB Type-C, USB OTG, Computer Sync, OTA Sync, FM Radio, Tethering, VoLTE, USB Charging, USB Mass Storage | 3.5 mm Audio Jack, Computer Sync, OTA Sync, FM Radio, Tethering, VoLTE, USB Charging, USB Mass Storage, USB OTG |
| USB Version | USB 2.0 | microUSB |
| Max. download speed | — | 1,000 Mbps |
| Max. upload speed | — | 200 Mbps |
Audio
| Specification | iQOO U3x | Y51s |
|---|---|---|
| Microphone Count | — | 2 |
| Audio Features | A2DP, LE, aptX HD, Loudspeaker | Loudspeaker |
Technical
| Specification | iQOO U3x | Y51s |
|---|---|---|
| Model numbers | V2106A | V2002A |
