| Xiaomi Redmi K40 Gaming |
Oppo A3s |
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| Hardware and OS | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Operating system | Android 11, MIUI 12.5 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | MediaTek MT6893 Dimensity 1200 5G (6 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Mali-G77 MC9 | Adreno 506 |
| Internal memory | 128GB 6GB RAM, 128GB 8GB RAM, 128GB 12GB RAM, 256GB 8GB RAM, 256GB 12GB RAM | 16 GB, 2 GB RAM |
| External memory | No | microSD, up to 256 GB (dedicated slot) |
| Display | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Type | OLED, 1B colors, 120Hz, HDR10 , 500 nits (typ) | IPS LCD |
| Size | 6.67 inches, 107.4 cm2 | 6.2" inc |
| Resolution | 1080 x 2400 pixels, 20:9 ratio | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | |
| Protection | Corning Gorilla Glass 5 | |
| Screen-to-Body Ratio | 81.2% | |
| Display area | 95.9 cm2 | |
| Display aspect ratio | 19:9 (height:width) | |
| Pixel Density | 271 PPI | |
| Colors | 16M | |
| Main Camera | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Camera | 64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF 8 MP, f/2.2, 120?? (ultrawide) 2 MP, f/2.4, (macro) | |
| Features | Dual-LED flash, HDR, panorama | |
| Video | 4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR | |
| Selfie camera | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Camera | 16 MP | |
| Features | HDR | |
| Video | 1080p@30fps, 720p@120fps, HDR | |
| Connectivity | Xiaomi Redmi K40 Gaming | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 | LTE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 5.2, A2DP, LE | 4.2, A2DP, LE |
| 5G Network | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 | |
| Edge | Yes | |
| GPRS | Yes | |
| CDMA | CDMA 800 | |
| GPS | Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC | Yes, with A-GPS |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A, 5G | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | USB Type-C 2.0, USB On-The-Go | microUSB 2.0, USB On-The-Go |
| Infrared port | Yes | |
| NFC | Yes | |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot | |
| Camera | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Main camera | 13 MP, Dual | |
| Specs | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | 8 MP, Single | |
| Multimedia | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Loudspeaker | Yes, with stereo speakers | |
| 3.5 mm Jack | No | Yes |
| Multimedia | 24-bit/192kHz audio Tuned by JBL | |
| Radio | No | FM radio |
| Design | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Colors | Black, Gray, Silver, Bruce Lee Yellow | Red, Dark Purple |
| Dimensions | 161.9 x 76.9 x 8.3 mm (6.37 x 3.03 x 0.33 in) | 156.2 x 75.6 x 8.2 mm |
| Weight | 205 g (7.23 oz) | 168 g |
| Body build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5) | |
| Body | Physical pop-up gaming triggers IP53, dust and splash protection | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Battery | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Type | Li-Po 5065 mAh, non-removable | |
| Charging | Fast charging 67W, 100% in 42 min (advertised) Power Delivery 3.0 Quick Charge 3 | |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Other | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass | |
| Features | Xiaomi Redmi K40 Gaming | Oppo A3s |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, compass, barometer, color spectrum |
