Oppo A31 vs Xiaomi Redmi 9 (4GB RAM + 128GB)
Quick Comparison
Xiaomi Redmi 9 (4GB RAM + 128GB) has better RAM than Oppo A31. In terms of display resolution, Xiaomi Redmi 9 (4GB RAM + 128GB) has better resolution of 1600 x 720 than Oppo A31 which has resolution of 854 x 480. Xiaomi Redmi 9 (4GB RAM + 128GB) has more internal memory than Oppo A31
| Name | Oppo A31 | Xiaomi Redmi 9 (4GB RAM + 128GB) |
| RAM | 1 GB | 4 GB |
|---|---|---|
| Display | 4.5 in | 6.53 in |
| Internal Memory | 8 GB | 128 GB |
| Battery | 2000 mAh | 5000 mAh |
| Camera | 8 MP | 13 MP + 2 MP Dual |
| Price | Rs. 10000 | Rs. 10190 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is April, 2015. The cost of Oppo A31 is Rs. 10000. The launch Date of the second phone is August 27, 2020 . The cost of Xiaomi Redmi 9 (4GB RAM + 128GB) is Rs. 10190.
Display comparison
Oppo A31 has screen size of 4.5 inches which falls short to Xiaomi Redmi 9 (4GB RAM + 128GB)'s 6.53 inch screen. Oppo A31 has IPS Screen type where as Xiaomi Redmi 9 (4GB RAM + 128GB) has LCD Screen type. Xiaomi's phone has display density of 269 PPI & OPPO's phone has only 218 PPI display density. Oppo A31 has 16:9 aspect ratio where as Xiaomi Redmi 9 (4GB RAM + 128GB) has 20:9 aspect ratio.
Memory comparison
Xiaomi Redmi 9 (4GB RAM + 128GB)'s larger 4 GB RAM is better for playing games and all with respect to Oppo A31's lower 1 GB RAM. Xiaomi Redmi 9 (4GB RAM + 128GB) has more Internal Memory (128 GB) than Oppo A31 (8 GB).
Camera comparison
Xiaomi Redmi 9 (4GB RAM + 128GB)'s 13 MP + 2 MP Dual Rear Camera outshines Oppo A31's 8 MP Rear Camera in terms of resolution. Both of them stand equal in terms of Front Camera Resolution as both have 5 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 4.4 and the second one on 10 version.
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Full Comparison
| Name | Oppo A31 | Xiaomi Redmi 9 (4GB RAM + 128GB) |
| General | ||
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Micro SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | April, 2015 | August 27, 2020 |
| Design | ||
| Dimensions | 65.5 x 131.9 x 8 mm | 77.07 x 164.9 x 9 mm |
| Weight | 135 g | 196 g |
| Display | ||
| Type | Color IPS Screen (16M colors Colors) | Color LCD Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 4.5 inches, 480 x 854 pixels | 6.53 inches, 720 x 1600 pixels |
| Aspect Ratio | 16:9 | 20:9 |
| PPI | ~ 218 PPI | ~ 269 PPI |
| Screen to Body Ratio | ~ 81% | |
| Notch | Yes, Water Drop Notch | |
| Memory | ||
| RAM | 1 GB | 4 GB |
| Storage | 8 GB | 128 GB |
| Card Slot | Yes, upto 128 GB | Yes, upto 512 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v4.0 | Yes, v5.0, A2DP, LE |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| USB Features | USB on-the-go, USB Charging | |
| IR Blaster | No | |
| Extra | ||
| GPS | Yes, with A-GPS Support | Yes, with A-GPS, GLONASS, BDS |
| Fingerprint Sensor | Yes, Rear | |
| Face Unlock | Yes | |
| Sensors | Accelerometer | Vibration Motor, Distance Sensor, Ambient Light Sensor, Aaccelerometer, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| Splash Resistant | Yes, Protected by P2i | |
| Camera | ||
| Rear Camera | 8 MP with autofocus | 13 MP f/2.2 (Wide Angle) 2 MP f/2.4 (Depth Sensor) with autofocus |
| Features | Geo tagging | HDR, AI Portrait Mode, Face Recognition, AI Beautify 5.0, AI Scene Detection |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP | 5 MP f/2.2 |
| Front Video Recording | 1080p @ 30 fps FHD | |
| Technical | ||
| OS | Android v4.4 (KitKat) | Android v10 |
| Chipset | Qualcomm Snapdragon 410 | MediaTek Helio G35 |
| CPU | Quad Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | Arm Cortex-A53 | |
| GPU | Adreno 306 | IMG PowerVR GE8320 |
| Java | Yes, via 3rd party | No |
| Browser | Yes, supports HTML | Yes, supports HTML5 |
| Multimedia | ||
| Supports | MMS | |
| Yes, with Push Email | Yes | |
| Music | FLAC, MP3, eAAC+, WAV, WMA | Yes |
| Video | MP4, WMV, H.264 | Yes |
| FM Radio | Yes | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Removable Battery | Non-Removable Battery |
| Size | 2000 mAh, Li-ion Battery | 5000 mAh, Li-Po Battery |
| StandBy Time | 10 days | |
| Talk Time | 7 hours | 37 hours |
| Music Playback Time | 164 hours | |