Findprix helps you compare the Vivo Y31 5G 6GB RAM and Redmi 15 5G (8GB RAM + 128GB) in terms of price, specifications, user reviews, and more. Vivo Y31 5G 6GB RAM is priced at ₹16,499. Redmi 15 5G (8GB RAM + 128GB) is priced at ₹15,999. Here's a quick comparison.
| Key Highlights | Vivo Y31 5G 6GB RAM | Redmi 15 5G (8GB RAM + 128GB) |
|---|---|---|
| Processor | Qualcomm Snapdragon 4 Gen 2 | 4 nm | Qualcomm Snapdragon 6s Gen 3 | 6 nm |
| RAM | 6GB | LPDDR4X | 8GB | LPDDR4X |
| Storage | 128GB | eMMC 5.1 | 128GB | UFS 2.2 |
| Display | 6.68 inches | HD+ | 6.9 inches | FHD+ |
| Front Camera | 8MP | 8MP |
| Rear Camera | 50MP + 0.08MP | 50MP |
| Battery | 6500 mAh | 44W | 7000 mAh | 33W |
| OS | Android 15 | Android 15 |
Overview
| Launch Date | September 13, 2025 | August 28, 2025 |
|---|---|---|
| Processor | Qualcomm Snapdragon 4 Gen 2 | 4 nm | Qualcomm Snapdragon 6s Gen 3 | 6 nm |
| RAM | 6GB | LPDDR4X | 8GB | LPDDR4X |
| Storage | 128GB | eMMC 5.1 | 128GB | UFS 2.2 |
| Display | 6.68 inches | HD+ | 6.9 inches | FHD+ |
| Front Camera | 8MP | 8MP |
| Rear Camera | 50MP + 0.08MP | 50MP |
| Battery | 6500 mAh | 44W | 7000 mAh | 33W |
| OS | Android 15 | Android 15 |
Price List
 | ₹16,499 | N/A |
|---|---|---|
 | ₹16,499 | N/A |
General
| Device Type | Smartphone | Smartphone |
|---|---|---|
| Operating System | Android 15 | Android 15 |
| Software Updates | -- | 2 Year OS + 4 Year Security |
| Custom UI | Funtouch OS | HyperOS |
Design
| Dimensions | 166.14 x 77.01 x 8.39 mm | 168.48 x 80.45 x 8.4 mm |
|---|---|---|
| Weight | 209 g | 217 g |
| Water Resistance | Yes, IP68, IP69 (up to 1.5m for 30 min) | Yes, IP64 |
| Dust Resistance | Yes | Yes |
| Build Material | Back: Plastic | Back: Plastic |
| Colours | Rose Red, Diamond Green | Midnight Black, Frosted Black, Sandy Purple |
| Features | MIL-STD-810H certified | -- |
Display
| Touch Screen | Yes | Yes |
|---|---|---|
| Touch Sampling Rate | -- | 288 Hz |
| Display Type | LCD | IPS LCD |
| Peak Brightness | 1000 nits | 850 nits |
| Refresh Rate | 120 Hz | 144 Hz |
| Screen Size | 6.68 inches (16.97 cm), HD+ | 6.9 inches (17.53 cm), Full HD+ |
| Screen Resolution | 720 x 1608 pixels | 1080 x 2340 pixels |
| Aspect Ratio | 20:9 | 19.5:9 |
| Screen-to-Body Ratio | ~84.0% | -- |
| Pixel Density | ~264 ppi | 374 ppi |
| Screen Protection | Yes, Guardian Glass | -- |
| Features | -- | TÜV Rheinland Circadian, FriendlyTÜV Rheinland flicker free, TÜV Rheinland Low Blue light |
Rear Camera
| Camera Setup | Dual | Single |
|---|---|---|
| Primary | 50 MP (wide) f/1.8 aperture PDAF | 50 MP (wide) f/1.75 aperture PDAF |
| Secondary | 0.08 MP f/3.0 aperture | -- |
| OIS | No | No |
| Autofocus | Yes | Yes |
| Flash | Yes, LED + Aura Light | Yes, LED |
| Video Recording | 1080p @ 30 fps | 1080p @ 30 fps |
Front Camera
| Camera Setup | Single | Single |
|---|---|---|
| Primary | 8 MP (wide) f/2.0 aperture | 8 MP (wide) f/2.2 aperture |
| Video Recording | 1080p @ 30 fps | 1080p @ 30 fps |
Performance
| RAM | 6 GB | 8 GB |
|---|---|---|
| RAM Type | LPDDR4X | LPDDR4X |
| Chipset | Qualcomm Snapdragon 4 Gen 2 | Qualcomm Snapdragon 6s Gen 3 |
| Fabrication | 4 nm | 6 nm |
| GPU | Adreno 613 | Adreno 619 |
| CPU | Octa core 2x Cortex A78 @ 2.2 GHz 6x Cortex A55 @ 1.95 GHz | Octa core 2x Cortex A78 @ 2.3 GHz 6x Cortex A55 @ 1.95 GHz |
Storage
| Internal Storage | 128 GB | 128 GB |
|---|---|---|
| Storage Type | eMMC 5.1 | UFS 2.2 |
| Memory Card Slot | Yes, up to 2 TB | Yes, up to 1 TB |
Battery
| Battery | 6500 mAh | 7000 mAh |
|---|---|---|
| Battery Type | Li-ion | Silicon Carbon |
| Wired Charging Speed | 44W | 33W |
| Wired Charging Time | 50% charge in ~38 minutes | -- |
| Wired Reverse Charging | Yes | Yes, 18W |
Network
| SIM | SIM 1: Nano SIM 2: Nano (Hybrid slot) | SIM 1: Nano SIM 2: Nano (Hybrid slot) |
|---|---|---|
| Network Support | 5G, 4G, 3G, 2G | 5G, 4G, 3G, 2G |
| 5G Bands | n1, n3, n5, n8, n28, n40, n77, n78 | n1, n3, n5, n8, n28, n40, n78 |
| 4G Bands | B1, B3, B5, B8, B28, B38, B40, B41 | B1, B3, B5, B8, B28, B40, B41 |
| Navigation Support | GPS, Glonass, Beidou, Galileo, QZSS | GPS, Glonass |
| SAR | Head: 1.130 W/kg Body: 0.986 W/kg | -- |
Connectivity
| Bluetooth | Yes, v4.2 | Yes, v5.1 |
|---|---|---|
| Wi-Fi | Yes, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz | Yes, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
| NFC | No | -- |
| Infrared port | -- | Yes |
Features
| Audio Jack | Yes, USB Type-C | Yes, USB Type-C |
|---|---|---|
| Loud Speaker | Yes | Yes, Dolby Atmos |
| Stereo Speakers | Yes | -- |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Sensors | Accelerometer, Compass, Light Sensor, Proximity Sensor | Light sensor, Proximity sensor, Accelerometer, Compass |
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