Both Vivo Y31 Pro 5G and Vivo T4x 5G (8GB RAM + 128GB) comes with same RAM.Neither of them has front Flash. Both have the same amount of internal memory.
| Name | Vivo Y31 Pro 5G | Vivo T4x 5G (8GB RAM + 128GB) | 
| RAM | 8 GB | 8 GB | 
|---|---|---|
| Display | 6.72 in | 6.72 in | 
| Internal Memory | 128 GB | 128 GB | 
| Battery | 6500 mAh | 6500 mAh | 
| Camera | 50 MP + 2 MP Dual | 50 MP + 2 MP Dual | 
| Price | Rs. 18999 | Rs. 14499 | 
The cost of Vivo Y31 Pro 5G is Rs. 18999. The launch Date of the second phone is March 05, 2025. The cost of Vivo T4x 5G (8GB RAM + 128GB) is Rs. 14499.
Both the phones have LCD Screen Type. Both have same 393 PPI. In terms of screen to body ratio, Vivo Y31 Pro 5G has better screen to body ratio of ~ 90.7% than Vivo T4x 5G (8GB RAM + 128GB)'s ~ 83%. Both mobiles have same aspect ratio of 20:9.
Both phones come with 8 GB RAM and both have same Internal Memory of 128 GB.
Vivo Y31 Pro 5G has 50 MP + 2 MP Dual Rear Camera in comparison to Vivo T4x 5G (8GB RAM + 128GB)'s 50 MP + 2 MP Dual Rear Camera. Both of them stand equal in terms of Front Camera Resolution as both have 8 MP Front Camera.
Both the phones run on Android Operating System Version 15.
| Name | Vivo Y31 Pro 5G | Vivo T4x 5G (8GB RAM + 128GB) | 
| General | ||
| Model | Y31 Pro 5G | V2437 | 
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM (Hybrid Slot) | 
| Dual Sim | Yes | Yes | 
| Sim Size | Nano+Nano SIM | Nano+Nano SIM | 
| SAR | 0.99 W/kg (Head) 0.94 W/kg (Body) | 0.99 W/kg (Head) 0.94 W/kg (Body) | 
| Device Type | Smartphone | Smartphone | 
| Release Date | March 05, 2025 | |
| In The Box | Y31 Pro 5G, Quick Start Guide, USB Cable, Charger, Eject Tool, Phone Case, Protective Film (applied), Warranty Card | Handset, Quick Start Guide, USB Cable, Charger, Eject Tool, Phone Case, Protective Film (Applied), Warranty Card | 
| Design | ||
| Dimensions | 76.3 x 165.7 x 8.19 mm | 76.3 x 165.7 x 8.09 mm | 
| Weight | 208 g | 204 g | 
| Bezel less | No | No | 
| Colors | Dreamy White / Mocha Brown | Marine Blue, Pronto Purple | 
| Display | ||
| Type | Color LCD Screen (16M Colors) | Color LCD Screen (16.7 M) | 
| Touch | Yes | Yes | 
| Size | 6.72 inches, 1080 x 2408 pixels, 120 Hz | 6.72 inches, 1080 x 2408 pixels, 120 Hz | 
| Aspect Ratio | 20:9 | 20:9 | 
| PPI | ~ 393 PPI | ~ 393 PPI | 
| Screen to Body Ratio | ~ 90.7% | ~ 83% | 
| Brightness | 1050 nits | |
| Features | 83% NTSC | Screen Brightness: 1050 Nits HBM (High Brightness Mode), Color Gamut: 83% NTSC | 
| Notch | Yes, Punch Hole | Yes, Punch Hole | 
| Memory | ||
| RAM | 8 GB | 8 GB | 
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | Upto 8 GB Extra Virtual RAM | 
| Storage | 128 GB | 128 GB | 
| Storage Type | UFS 3.1 | UFS 3.1 | 
| Card Slot | No | |
| Connectivity | ||
| GPRS | Yes | Yes | 
| EDGE | Yes | Yes | 
| 3G | Yes | Yes | 
| 4G | Yes | Yes | 
| 5G | Yes | Yes | 
| 5G Bands | n1/n3/n5/n8/n28B/n40/n77/n78 | n1/n3/n5/n8/n28B/n40/n77/n78 | 
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By | 
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Wifi Version | 2.4 GHz / 5 GHz | Supports (2.4 GHz | 5.0 GHz), WiFi 6 | 
| Bluetooth | Yes, v5.4 | Yes, v5.4 | 
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 | 
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging, USB Storage | 
| IR Blaster | Yes | Yes | 
| Performance | ||
| AnTuTu Score | 683,862 (Total) (v10) 198,203 (CPU) 146,819 (GPU) 185,400 (Memory) 153,440 (UX) | |
| Geekbench Score | 2,831 (Multi Core) (v6) 1,029 (Single Core) | |
| Extra | ||
| GPS | GPS, BeiDou, GLONASS, Galileo, QZSS | GPS, BEIDOU, GLONASS, GALILEO, QZSS | 
| Fingerprint Sensor | Yes, Side | Yes, Side | 
| Face Unlock | Yes | Yes | 
| Sensors | Accelerometer, Color Temperature Sensor, Ambient Light Sensor, Proximity Sensor, E-compass, Gyroscope, Infrared blaster | Accelerometer, Ambient Light Sensor, E-Compass, Proximity Sensor, Gyroscope | 
| AI Features | AI Erase, AI Photo Enhance, Smart AI Assistant, AI SuperLinK | |
| Splash Resistant | Yes | Yes | 
| IP Rating | IP64 | IP64 | 
| Dust Resistant | Yes | Yes | 
| Extra Features | Dual SIM Dual Standby (DSDS) | LPDDR4X RAM, Military-Grade Certified Durability, AI Erase, AI Photo Enhance, Quad Curved Design, Ultra Game Mode, 2 Years of Android Updates and 3 Years Of Security Updates, Antutu Score: 728K+, Circle to Search | 
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Main) 2 MP ƒ/2.4 Bokeh | 50 MP ƒ/1.8 (Wide Angle) 2 MP ƒ/2.4 (Depth Sensor) | 
| Auto Focus | Yes | Yes | 
| Features | Photo, Night, Portrait, Video, Live Photo, Slo-mo, Time-lapse, Pro, Pano, Documents, 50 MP, Scan | Night, Portrait, Photo, Video, 50MP, Pano, Documents, Slo-Mo, Timelapse, Pro, Live Photo | 
| Video Recording | 1080p, 4K @ 30 fps UHD | 1080p @ 30 fps FHD, 4K @ 30 fps UHD | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 8 MP ƒ/2 Punch Hole | 8 MP ƒ/2.05 (Wide Angle) Punch Hole | 
| Front Video Recording | 1080p | 1080p | 
| Technical | ||
| OS | Android v15 | Android v15 | 
| Custom UI | Funtouch OS 15 | |
| Chipset | MediaTek Dimensity 7300 | Mediatek Dimensity 7300 | 
| CPU | Octa Core Processor | 2.5 GHz, Octa Core Processor | 
| Core Details | 4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55 | |
| GPU | Adreno GPU | |
| Java | No | No | 
| Browser | Yes | Yes | 
| Multimedia | ||
| Yes | Yes | |
| Music | WAV, MP3, MP2, AMR-NB, MIDI, Vorbis, APE, FLAC, OGG, M4A | WAV, MP3, MP2, MP1, MIDI, Vorbis, APE, FLAC, AAC, OPUS | 
| Video | MP4, 3GP, AVI, TS, MKV, FLV | MP4, 3GP, MKV, FLV | 
| FM Radio | No | No | 
| Speaker Type | Dual Stereo | |
| Audio Features | Hi-Res Audio Certification | |
| Document Reader | Yes | |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 6500 mAh, Li-ion Battery | 6500 mAh, Li-ion Battery | 
| Fast Charging | Yes, 44W | Yes, 44W | 
| Reverse Charging | Yes | |