vivo
Side-by-side technical data
vivo Y15S (2015) vs vivo Y31t
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?
vivo Y15S (2015), if you care about…
- Weight
- 130 g
- against 219 g
- Expandable Storage
- Yes
- against No
- Max. download speed
- 150 Mbps
- against 42.2 Mbps
- Max. upload speed
- 50 Mbps
- against 5.76 Mbps
vivo Y31t, if you care about…
- Battery Capacity
- 7,200 mAh
- against 1,900 mAh
- RAM Capacity
- 6 GB
- against 1 GB
- Wi-Fi Standards
- Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 5 (802.11ac)
- against Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n)
- Bluetooth Version
- Bluetooth 4.2
- against Bluetooth 4.0
Specification comparison
Performance
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| Processor Model | MediaTek MT6580 | Qualcomm Snapdragon 4 Gen 2 |
| Processor Process Size | 28 nm | 4 nm Best value |
| Graphics GPU | Mali-400 MP2 | Qualcomm Adreno 613 |
| Storage Type | — | UFS 3.1 |
| Maximum CPU Clock | 1.3 GHz | 2.2 GHz Best value |
| Maximum Storage Capacity | 8 GB | 256 GB Best value |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | Quad-core 1.3 GHz Cortex-A7 | Octa-core CPU with 2 Cortex-A78 cores at 2.2 GHz and 6 Cortex-A55 cores at 1.95 GHz. |
| Processor Type | Quad-Core | Octa-Core |
| 64-Bit Processor | No | Yes Best value |
| RAM Capacity | 1 GB | 6 GB Best value |
| RAM Type | DDR3 | DDR5 Best value |
| Expandable Storage | Yes Best value | No |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Design
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| Body Colors | White, Black | Red, Green, Gold |
| Body Thickness | 9 mm | 8.4 mm Best value |
| Body Width | 66.2 mm | 78.4 mm |
| Body Height | 131.4 mm | 166.6 mm |
| Weight | 130 g Best value | 219 g |
| Usable Surface | 64.1 % | 83.9 % Best value |
| Body Materials | — | Glass, Plastic |
| Resistance Features | — | IP68, IP69 |
| Waterproof Depth | — | 1.5 m |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | 9 mm | — |
| QWERTY keyboard | — | — |
Battery
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 1,900 mAh | 7,200 mAh Best value |
| Battery Type | — | Si-Carbon Li-Ion |
| Fast Charge Power | — | 44 W |
| Battery Features | Battery Level Indicator, Rechargeable, Removable | Fast Charging, Reverse Charging, Battery Level Indicator, Charger Included, Rechargeable |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | — | — |
| Standby time | — | — |
| Music playback time | — | — |
| Reverse wireless charging power | — | — |
Display
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| Display Aspect Ratio | 16:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | — | 1,200 nits |
| Display Diagonal | 4.5″ | 6.75″ Best value |
| Display Horizontal Resolution | 480 px | 720 px Best value |
| Display Vertical Resolution | 854 px | 1,608 px Best value |
| Display Pixel Density | 218 ppi | 261 ppi Best value |
| Display Refresh Rate | — | 120 Hz |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | IPS LCD, Touchscreen | IPS LCD, 120Hz, Touchscreen |
| 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 | Y15S (2015) | Y31t |
|---|---|---|
| Fingerprint Sensor Placement | — | Side |
Sensor
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| Sensor Features | Accelerometer, Proximity Sensor, Compass, Gyroscope | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gyroscope |
Software
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| Operating System | Android 5.1 | Android 16 |
| OS Family | Android | Android |
| OS Version | 5.1 | 16 Best value |
| OS Update Support | — | — |
| Direct OS Updates | No | Yes Best value |
| Google Services | — | — |
| Web browser | — | — |
| Java (J2ME) | — | — |
| Widevine L1 | — | — |
Connectivity
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| SIM Configurations | Dual Micro-SIM, Dual SIM Dual Standby | Dual Nano-SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B8, 3G UMTS B1 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 4G LTE bands unspecified, 5G NR bands unspecified |
| Cellular Technologies | GSM, HSPA | GSM, HSPA, UMTS, LTE, 4G, 5G Best value |
| Wi-Fi Standards | Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n) | Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 5 (802.11ac) Best value |
| Wi-Fi Features | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi Hotspot | Dual Band, Wi-Fi 802.11a/b/g/n/ac |
| Bluetooth Version | Bluetooth 4.0 | Bluetooth 4.2 Best value |
| Bluetooth Profiles | A2DP, EDR | A2DP, aptX Adaptive |
| Navigation Systems | GPS | GPS, Galileo, GLONASS, BeiDou, QZSS Best value |
| Connectivity Features | 3.5 mm Audio Jack, Infrared, FM Radio, microUSB, USB OTG | Infrared, USB Type-C, USB 2.0, USB OTG |
| USB Version | microUSB | USB 2.0 |
| SAR American Head | 0.62 W/kg | — |
| SAR American Body | 0.59 W/kg | — |
| SAR (EU) head | 0.76 W/kg | — |
| SAR (EU) body | 0.73 W/kg | — |
| Messaging | — | — |
| Max. download speed | 150 Mbps Best value | 42.2 Mbps |
| Max. upload speed | 50 Mbps Best value | 5.76 Mbps |
Audio
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| Microphone Count | 1 | 2 Best value |
| Audio Features | Loudspeaker | aptX Adaptive, Stereo Speakers Best value |
| Alert types | — | — |
Technical
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | Y15S (2015) | Y31t |
|---|---|---|
| Built-in functions | — | — |
