Poco X4 Pro 5G (6GB RAM + 128GB) vs Vivo Y31 5G (6GB RAM + 128GB)
Quick Comparison
Both Poco X4 Pro 5G (6GB RAM + 128GB) and Vivo Y31 5G (6GB RAM + 128GB) comes with same RAM. In terms of display resolution, Poco X4 Pro 5G (6GB RAM + 128GB) has better resolution of 2400 x 1080 than Vivo Y31 5G (6GB RAM + 128GB) which has resolution of 1608 x 720. Both have the same amount of internal memory.
| Name | Poco X4 Pro 5G (6GB RAM + 128GB) | Vivo Y31 5G (6GB RAM + 128GB) |
| RAM | 6 GB | 6 GB |
|---|---|---|
| Display | 6.67 in | 6.68 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 5000 mAh | 6500 mAh |
| Camera | 64 MP + 8 MP + 2 MP Triple | 50 MP |
| Price | Rs. 19490 | Rs. 19999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is March 28, 2022 . The cost of Poco X4 Pro 5G (6GB RAM + 128GB) is Rs. 19490. The launch Date of the second phone is September 15, 2025. The cost of Vivo Y31 5G (6GB RAM + 128GB) is Rs. 19999.
Display comparison
Vivo Y31 5G (6GB RAM + 128GB) has larger screen size of 6.68 inches in comparison to Poco X4 Pro 5G (6GB RAM + 128GB)'s 6.67 inch screen. Poco X4 Pro 5G (6GB RAM + 128GB) has Screen type where as Vivo Y31 5G (6GB RAM + 128GB) has IPS Screen type. Poco's phone has display density of 395 PPI & Vivo's phone has only 264 PPI display density. In terms of screen to body ratio, Poco's phone has better screen to body ratio of ~ 86% than Vivo's phone ~ 84%. Both mobiles have same aspect ratio of 20:9.
Memory comparison
Both mobiles come with 6 GB RAM and both have same Internal Memory of 128 GB.
Camera comparison
Poco X4 Pro 5G (6GB RAM + 128GB)'s 64 MP + 8 MP + 2 MP Triple Rear Camera outclasses Vivo Y31 5G (6GB RAM + 128GB)'s 50 MP Rear Camera in terms of resolution. Poco X4 Pro 5G (6GB RAM + 128GB) will be better choice if you're looking to click lot of selfies as it has better 16 MP Front Camera in comparison to Vivo Y31 5G (6GB RAM + 128GB)'s 8 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 11 and the second one on 15 version.
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Full Comparison
| Name | Poco X4 Pro 5G (6GB RAM + 128GB) | Vivo Y31 5G (6GB RAM + 128GB) |
| General | ||
| Country of Origin | India | |
| Model | MZB0AWGIN, X4 Pro 5G | Y31 |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | Yes | Yes |
| Sim Size | Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | March 28, 2022 | September 15, 2025 |
| In The Box | USB Cable, SIM Tray Ejector, Phone Case, Screen Protector (Applied), Power Adapter | |
| Design | ||
| Dimensions | 76.1 x 164.19 x 8.12 mm | 77 x 166.1 x 8.4 mm |
| Weight | 205 g | 209 g |
| Colors | Rose Red, Diamond Green | |
| Display | ||
| Type | Color In-Cell AMOLED Dot Display (16M Colors) | Color IPS Screen (16M Colors) |
| Touch | Yes, 360 Hz Touch Sampling Rate | Yes |
| Size | 6.67 inches, 1080 x 2400 pixels, 120 Hz | 6.68 inches, 720 x 1608 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 395 PPI | ~ 264 PPI |
| Screen to Body Ratio | ~ 86% | ~ 84% |
| Glass Type | Corning Gorilla Glass 5 | Guardian Glass (ion-strengthened) |
| Brightness | 1000nts | |
| Features | 1200 nits Peak Brightness, Contrast Ratio: 4500000:1, NTSC Ratio: Supports DCI-P3 Color Gamut | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
| Memory | ||
| RAM | 6 GB | 6 GB |
| Expandable RAM | Upto 6 GB Extra Virtual RAM | |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.2 | eMMC 5.1 |
| Card Slot | Yes, (Hybrid Slot), upto 1 TB | Yes, (Hybrid Slot) |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.1, A2DP, LE | Yes, v4.2 |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging |
| IR Blaster | Yes | |
| Extra | ||
| GPS | GPS, A-GPS, GLONASS, BEIDOU | with A-GPS, BeiDou, GLONASS, Galileo |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Ambient Light Sensor, Proximity Sensor, E-Compass, Accelerometer, Gyroscope | Accelerometer, Proximity, Compass |
| 3.5mm Headphone Jack | Yes | No |
| AI Features | SMart AI, Ai Erase, Ai Photo Enhance, Circle to Search | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| Splash Resistant | No | |
| IP Rating | IP53 | IP68/IP69 |
| Dust Resistant | No | Yes |
| Camera | ||
| Rear Camera | 64 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro | 50 MP ƒ/1.8 (Wide Angle) |
| Auto Focus | Yes | Yes |
| Features | HDR, AI Portrait Mode, Pro Mode, AI Scene Detection, Night Mode, Short Video, Slow Motion, Time Lapse, Panorama, AI Watermark, Pro Color, Timed Burst, Tilt Shift, Ultra Wide Mode, Macro Mode, Long Exposure, Dual Video | Ring- panorama |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP ƒ/2.45 (Wide Angle) Punch Hole | 8 MP ƒ/2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v11 | Android v15 |
| Chipset | Qualcomm Snapdragon 695 | Qualcomm Snapdragon 4 Gen2 |
| CPU | 2.2 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| Core Details | 2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver | 2x Performance Cores@2.2GHz & 6x Efficiency Cores@2GHz |
| GPU | Adreno 619 | Adreno 613 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | WAV, MP3, MP2, AMR-NB, MIDI, Vorbis, APE, FLAC, OGG, M4A |
| Video | Yes | MP4, 3GP, AVI, TS, MKV, FLV |
| FM Radio | Yes | No |
| Speaker Type | Dual Stereo | |
| Document Reader | Yes | |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 6500 mAh |
| Fast Charging | Yes, 67W Fast Charging | Yes, 44W |