Realme 8 5G (8GB RAM + 128GB) vs Vivo Y31 5G (6GB RAM + 128GB)
Quick Comparison
Realme 8 5G (8GB RAM + 128GB) has better RAM than Vivo Y31 5G (6GB RAM + 128GB). In terms of display resolution, Realme 8 5G (8GB 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 | Realme 8 5G (8GB RAM + 128GB) | Vivo Y31 5G (6GB RAM + 128GB) |
| RAM | 8 GB | 6 GB |
|---|---|---|
| Display | 6.5 in | 6.68 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 5000 mAh | 6500 mAh |
| Camera | 48 MP + 2 MP + 2 MP Triple | 50 MP |
| Price | Rs. 16999 | Rs. 27999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is April 22, 2021 . The cost of Realme 8 5G (8GB RAM + 128GB) is Rs. 16999. The launch Date of the second phone is September 15, 2025. The cost of Vivo Y31 5G (6GB RAM + 128GB) is Rs. 27999.
Display comparison
Vivo Y31 5G (6GB RAM + 128GB) has larger screen size of 6.68 inches in comparison to Realme 8 5G (8GB RAM + 128GB)'s 6.5 inch screen. Realme 8 5G (8GB RAM + 128GB) has IPS LCD Screen type where as Vivo Y31 5G (6GB RAM + 128GB) has IPS Screen type. Realme's phone has display density of 405 PPI & Vivo's phone has only 264 PPI display density. In terms of screen to body ratio, Realme's phone has better screen to body ratio of ~ 90.5% than Vivo's phone ~ 84%. Both phones have same aspect ratio of 20:9.
Memory comparison
Realme 8 5G (8GB RAM + 128GB)'s larger 8 GB RAM is better for playing games and all with respect to Vivo Y31 5G (6GB RAM + 128GB)'s lower 6 GB RAM. and both have same Internal Memory of 128 GB.
Camera comparison
Vivo Y31 5G (6GB RAM + 128GB)'s 50 MP Rear Camera outclasses Realme 8 5G (8GB RAM + 128GB)'s 48 MP + 2 MP + 2 MP Triple Rear Camera in terms of resolution. Realme 8 5G (8GB 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 | Realme 8 5G (8GB RAM + 128GB) | Vivo Y31 5G (6GB RAM + 128GB) |
| General | ||
| Country of Origin | India | |
| Model | 8 5G | Y31 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | April 22, 2021 | September 15, 2025 |
| In The Box | USB Cable, SIM Tray Ejector, Phone Case, Screen Protector (Applied), Power Adapter | |
| Design | ||
| Dimensions | 74.8 x 162.5 x 8.5 mm | 77 x 166.1 x 8.4 mm |
| Weight | 185 g | 209 g |
| Colors | Rose Red, Diamond Green | |
| Display | ||
| Type | Color IPS LCD Screen (16M Colors) | Color IPS Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.5 inches, 1080 x 2400 pixels, 90 Hz | 6.68 inches, 720 x 1608 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 405 PPI | ~ 264 PPI |
| Screen to Body Ratio | ~ 90.5% | ~ 84% |
| Glass Type | Guardian Glass (ion-strengthened) | |
| Brightness | 1000nts | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
| Memory | ||
| RAM | 8 GB | 6 GB |
| Expandable RAM | Upto 6 GB Extra Virtual RAM | |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.1 | eMMC 5.1 |
| Card Slot | Yes, 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 |
| Extra | ||
| GPS | Yes, with A-GPS, BEIDOU, GALILEO, QZSS, GLONASS | with A-GPS, BeiDou, GLONASS, Galileo |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Proximity, Magnetic Induction Sensor, Gyro-meter, Light Sensor, Acceleration Sensor | 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 | |
| IP Rating | IP68/IP69 | |
| Dust Resistant | Yes | |
| Camera | ||
| Rear Camera | 48 MP ƒ/1.8 (Wide Angle) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 B&W Portrait | 50 MP ƒ/1.8 (Wide Angle) |
| Auto Focus | Yes | Yes |
| Features | Super Nightscape, Panoramic View, Expert, Timelapse, Portrait Mode, HDR, Ultra Macro, AI Scene Recognition, AI Beauty, Filters | Ring- panorama |
| Video Recording | 1080p @ 30 fps FHD, 720p | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP ƒ/2.1 (Main) Punch Hole, Screen Flash | 8 MP ƒ/2 (Wide Angle) |
| Front Video Recording | 1080p | 1080p @ 30 fps FHD |
| Front Camera Features | Portrait Mode, Panoramic View, AI Beauty, HDR, Face-Recognition, Super Nightscape | PDAF, Palm Capture, Voice Control, Selfie Softlight, Live Photos, HDR, Panorama, Bokeh, Portrait Bokeh, Screen Flash |
| Technical | ||
| OS | Android v11 | Android v15 |
| Chipset | MediaTek Dimensity 700 5G | Qualcomm Snapdragon 4 Gen2 |
| CPU | 2.2 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| Core Details | 4x2.2 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55 | 2x Performance Cores@2.2GHz & 6x Efficiency Cores@2GHz |
| GPU | Mali-G57 MC2 | Adreno 613 |
| Java | No | No |
| Browser | Yes, supports HTML5 | 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 | No | 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, 18W Fast Charging | Yes, 44W |
| StandBy Time | 22 days | |
| Talk Time | 31 hours | |
| Music Playback Time | 153 hours | |