vivo iQOO U1x vs vivo Y31
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| PHONES | ||
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| Phone Names | vivo iQOO U1x | vivo Y31 |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G bands | 1, 3, 5, 8, 34, 38, 39, 40, 41 | 1, 3, 5, 8, 28, 38, 40, 41 |
| 5G bands | - | 1, 3, 5, 8, 28, 40, 77, 78 SA/NSA |
| Speed | HSPA, LTE | HSPA, LTE, 5G |
| Technology | GSM / CDMA / HSPA / LTE | GSM / HSPA / LTE / 5G |
| CDMA 800 & TD-SCDMA | - | |
| Launch | ||
|---|---|---|
| Announced | 2020, October 21. Released 2020, October 31 | 2025, September 15 |
| Status | Discontinued | Available. Released 2025, September 15 |
| Body | ||
|---|---|---|
| Build | Glass front, plastic back, plastic frame | - |
| Dimensions | 164.4 x 76.3 x 8.4 mm (6.47 x 3.00 x 0.33 in) | 166.1 x 77 x 8.4 mm (6.54 x 3.03 x 0.33 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 192.3 g (6.77 oz) | 209 g (7.37 oz) |
| Display | ||
|---|---|---|
| Protection | - | Guardian Glass (ion-strengthened) |
| Resolution | 720 x 1600 pixels, 20:9 ratio (~270 ppi density) | 720 x 1608 pixels, 20:9 ratio (~264 ppi density) |
| Size | 6.51 inches, 102.3 cm2 (~81.6% screen-to-body ratio) | 6.68 inches, 107.4 cm2 (~84.0% screen-to-body ratio) |
| Type | IPS LCD | IPS LCD, 120Hz, 1000 nits (HBM) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) | Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55) |
| Chipset | Qualcomm SM6115 Snapdragon 662 (11 nm) | Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm) |
| GPU | Adreno 610 | Adreno 613 |
| OS | Android 10, IQOO UI 1.0 | Android 15, Funtouch 15 |
| Memory | ||
|---|---|---|
| Card slot | No | microSDXC (uses shared SIM slot) |
| Internal | 64GB 4GB RAM, 64GB 6GB RAM, 128GB 6GB RAM | 128GB 4GB RAM, 128GB 6GB RAM |
| UFS 2.1 | - | |
| Main Camera | ||
|---|---|---|
| Features | LED flash, HDR | Ring-LED flash, panorama |
| Single | - | 50 MP, f/1.8, (wide), PDAF Auxiliary lens |
| Triple | 13 MP, f/2.2, (wide), PDAF 2 MP (macro) Auxiliary lens | 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) |
| Video | 1080p@30fps | 1080p@30fps |
| Selfie camera | ||
|---|---|---|
| Features | - | HDR |
| Single | 8 MP, f/1.8, (wide) | 8 MP, f/2.0, (wide) |
| Video | 1080p@30fps | 1080p@30fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | No |
| Loudspeaker | Yes | Yes, with stereo speakers |
| Comms | ||
|---|---|---|
| Bluetooth | 5.0, A2DP, LE, aptX HD | 4.2, A2DP, LE |
| NFC | No | No |
| Positioning | GPS, BDS | GPS, GLONASS, GALILEO, BDS, QZSS |
| Radio | Unspecified | No |
| USB | microUSB 2.0, OTG | USB Type-C 2.0, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 18W wired | 44W wired, 50% in 38 min Reverse wired |
| Type | 5000 mAh | Li-Ion 6500 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, Blue | Rose Red, Diamond Green |
| Models | V2065A | V2036, V2036_21 |
| Price | About 110 EUR | About 150 EUR |
| SAR | - | 1.13 W/kg (head) 0.99 W/kg (body) |