Xiaomi Redmi 15A 5G (4GB RAM + 128GB) vs Vivo Y31 5G
Quick Comparison
Both Xiaomi Redmi 15A 5G (4GB RAM + 128GB) and Vivo Y31 5G comes with same RAM. In terms of display resolution, Vivo Y31 5G has better resolution of 1608 x 720 than Xiaomi Redmi 15A 5G (4GB RAM + 128GB) which has resolution of 1600 x 720. Both have the same amount of internal memory.
| Name | Xiaomi Redmi 15A 5G (4GB RAM + 128GB) | Vivo Y31 5G |
| RAM | 4 GB | 4 GB |
|---|---|---|
| Display | 6.9 in | 6.68 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 6300 mAh | 6500 mAh |
| Camera | 32 MP | 50 MP |
| Price | Rs. 14448 | Rs. 19999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is March 27, 2026. The cost of Xiaomi Redmi 15A 5G (4GB RAM + 128GB) is Rs. 14448. The launch Date of the second phone is September 15, 2025. The cost of Vivo Y31 5G is Rs. 19999.
Display comparison
Xiaomi Redmi 15A 5G (4GB RAM + 128GB) has larger screen size of 6.9 inches in comparison to Vivo Y31 5G's 6.68 inch screen. Both the phones have IPS Screen Type. Vivo's phone has display density of 264 PPI & Xiaomi's phone has only 254 PPI display density. In terms of screen to body ratio, Vivo's phone has better screen to body ratio of ~ 84% than Xiaomi's phone ~ 83%. Xiaomi Redmi 15A 5G (4GB RAM + 128GB) has 20.6:9 aspect ratio where as Vivo Y31 5G has 20:9 aspect ratio.
Memory comparison
Both mobiles come with 4 GB RAM and both have same Internal Memory of 128 GB.
Camera comparison
Vivo Y31 5G's 50 MP Rear Camera outclasses Xiaomi Redmi 15A 5G (4GB RAM + 128GB)'s 32 MP Rear Camera in terms of resolution. Both of them stand equal in terms of Front Camera Resolution as both have 8 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 16 and the second one on 15 version.
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Full Comparison
| Name | Xiaomi Redmi 15A 5G (4GB RAM + 128GB) | Vivo Y31 5G |
| General | ||
| Country of Origin | India | |
| Model | 15A 5G | Y31 |
| 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 |
| Device Type | Smartphone | Smartphone |
| OS Updates | 4 years | |
| Security Updates | 6 years | |
| Release Date | March 27, 2026 | September 15, 2025 |
| In The Box | Mobile Phone, Adapter, USB Type-C cable, SIM Eject Tool, Quick Start Guide & Warranty Card | USB Cable, SIM Tray Ejector, Phone Case, Screen Protector (Applied), Power Adapter |
| Design | ||
| Dimensions | 79.47 x 171.56 x 8.15 mm | 77 x 166.1 x 8.4 mm |
| Weight | 210 g | 209 g |
| Colors | Awesome Blue, Amaze Purple, Ace Black | Rose Red, Diamond Green |
| Display | ||
| Type | Color IPS Screen (1.07Mn Colours) | Color IPS Screen (16M Colors) |
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes |
| Size | 6.9 inches, 720 x 1600 pixels, 120 Hz | 6.68 inches, 720 x 1608 pixels, 120 Hz |
| Aspect Ratio | 20.6:9 | 20:9 |
| PPI | ~ 254 PPI | ~ 264 PPI |
| Screen to Body Ratio | ~ 83% | ~ 84% |
| Glass Type | Guardian Glass (ion-strengthened) | |
| Brightness | 800nit Peak Brightness | 1000nts |
| Features | TÜV flicker-free certification, TÜV Circadian Friendly. TÜV low blue light | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
| Memory | ||
| RAM | 4 GB | 4 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 4 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 |
| 5G Bands | SA/NSA: n1/3/5/8/28/40/41/78 | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | 802.11a/b/g/n/ac | |
| Bluetooth | Yes, v5.4 | Yes, v4.2 |
| USB | Yes, USB-C | 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/AGPS, Glonass,Galileo | with A-GPS, BeiDou, GLONASS, Galileo |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Ambient Light Sensor, Proximity Sensor (Virtual), E Compass, Accelerometer | Accelerometer, Proximity, Compass |
| 3.5mm Headphone Jack | No | |
| AI Features | Google Gemini | Circle To Search | Xiaomi Interconnectivity | SMart AI, Ai Erase, Ai Photo Enhance, Circle to Search |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP52 | IP68/IP69 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 32 MP ƒ/2 (Wide Angle) | 50 MP ƒ/1.8 (Wide Angle) |
| Auto Focus | Yes | Yes |
| Features | AI Sky, AI Erase, Classic Film Filters | Ring- panorama |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 8 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash | 8 MP ƒ/2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v16 | Android v15 |
| Custom UI | HyperOS 3.0 | |
| Chipset | Unisoc T8300 | Qualcomm Snapdragon 4 Gen2 |
| CPU | 2.2 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| Core Details | 2*A78 2.2Ghz + 6*A55 2.0GHz | 2x Performance Cores@2.2GHz & 6x Efficiency Cores@2GHz |
| GPU | G57 950MHz | 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 | Yes | No |
| Speaker Type | Dual Stereo | Dual Stereo |
| Audio Features | Bottom Firing Speaker with 200% Volume Boost | |
| Document Reader | Yes | |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 6300 mAh | 6500 mAh |
| Fast Charging | Yes, 33W | Yes, 44W |
| Reverse Charging | Yes, 15W | |
| Reverse Wireless Charging | Yes, 7.5 | |