This is a side-by-side specs comparison of the OPPO A31 and Redmi Note 15 smartphones.
The OPPO A31 features a 6.5-inch display, 4,230mAh battery, 10W charging rate, triple-camera setup and MediaTek Helio P35 chipset.
Meanwhile, the Redmi Note 15 features a slightly larger 6.77-inch display, 108MP main camera, 6,000mAh battery, 33W fast charging and IP64 dust & water resistance. It is more expensive.
| Specs | OPPO A31 | Redmi Note 15 |
|---|---|---|
| Picture & Ratings |
★★★★★ 3.4/5 stars (380)
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★★★★★ 3.4/5 stars (37)
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| Design and Display | ||
| Display | 6.5-inch HD+ IPS LCD Display (720 x 1600 Pixels 270 ppi) with 20:9 Aspect Ratio and Waterdrop Notch | 6.77-inch FHD+ AMOLED Display (1080 x 2392 Pixels, 260 ppi) with Scratch Resistant Glass, 120Hz Refresh Rate, 3840Hz PWM, 800nits typ. brightness, 3200nits peak and punch-hole |
| Size | 163.9 x 75.5 x 8.3 mm | 164.03 x 75.42 x 7.94 mm |
| Weight | 180 g | 183.7 g |
| Build | Glossy Plastic | Glass front, Plastic back |
| Durability | IP64 dust & splash resistance | |
| Colors | Mystery Black and Fantasy White | Black, Glacier Blue, Purple |
| Our pick: |
✔
Redmi Note 15 The Redmi Note 15 has a larger and sharper display. It also has better build materials and is more durable, while the OPPO A31 is slightly lighter. |
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| Performance | ||
| Chipset | MediaTek Helio P35 | MediaTek Helio G100-Ultra (6 nm) |
| CPU | Octa Core CPU 4x Cortex-A53 @ 2.3GHz & 4x Cortex-A53 @ 1.8GHz |
Octa Core CPU 2x Cortex-A76 @ 2.2GHz & 6x Cortex-A55 @ 2.0GHz |
| GPU | PowerVR GE8320 | Mali-G57 MP2 |
| RAM | 4 GB | 8 GB |
| Storage | 128GB | 128GB (UFS 2.2) |
| Expansion | 512GB via microSD | 2TB via microSD |
| OS | Android 9.0 Pie with ColorOS 6.1 | Android 15 with Xiaomi HyperOS 2 |
| Our pick: |
✔
Redmi Note 15
The Redmi Note 15 has better performance and a higher RAM capacity. |
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| Cameras | ||
| Rear Camera | Triple Cameras: 12MP Main Camera (f/1.8 Aperture, PDAF) 2MP Macro (f/2.4 Aperture) 2MP Depth Sensor -LED Flash |
Dual Cameras: 108MP Main Camera (f/1.7 Aperture, Autofocus) 2MP Depth Camera (f/2.4) -LED Flash -Up to 1080p@60fps video recording |
| Front Camera |
8 Megapixels (f/2.0 Aperture) |
20 Megapixels (f/2.2 Aperture) - Up to 1080p@30fps video recording |
| Our pick: |
✔
Redmi Note 15
Redmi Note 15 has the more capable camera system with a wider-aperture main camera. |
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| Connectivity | ||
| Networks | 4G LTE (with VoLTE), 3G HSPA+, 2G EDGE & GPRS Networks | 4G LTE, 3G HSPA+, 2G EDGE & GPRS Networks |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n/ac (dual band) |
| SIM | Dual SIM (Nano-SIM) | Dual SIM (Nano-SIM) |
| NFC | No | No |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.3 |
| Infrared | Yes | |
| Location | A-GPS | GPS, GLONASS, GALILEO, BeiDou |
| Our pick: |
✔
Redmi Note 15
The Redmi Note 15 has newer Bluetooth. |
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| Audio and Features | ||
| USB OTG | Yes | Yes |
| USB | MicroUSB 2.0 | USB Type-C |
| 3.5mm Audio Jack | Yes | No |
| Audio Enhancement | None | Hi-Res Audio, Dolby ATMOS, Dual Speakers, Up to 300% speaker volume |
| FM Radio | Yes | No |
| Sensors |
Face Recognition & Fingerprint Sensor Proximity Sensor & Ambient Light Sensor Compass & Accelerometer |
Face Recognition & Fingerprint Sensor Proximity Sensor & Ambient Light Sensor Compass, Gyroscope & Accelerometer |
| Our pick: |
✔
Redmi Note 15
Based on the specs, it has stereo speakers, Dolby Atmos, Hi-Res Audio, higher maximum volume, and a gyroscope. |
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| Battery and Charging | ||
| Battery | 4230 mAh Li-Po Battery (Non-removable) | 6000 mAh (Non-removable) |
| Charging | 10W Charging |
33W Fast charging 18W Reverse charging |
| Our pick: |
✔
Redmi Note 15
The Redmi Note 15 has a larger battery capacity and faster charging. |
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| Price and Availability | ||
| Price | ₱8,990.00 - Official Price in the Philippines | ₱10,999.00 - Official Price in the Philippines |
| Release Date | March 9, 2020 | January 15, 2026 |
| Buy Online |
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