| Coolpad D539 |
Xiaomi Redmi Note 8 |
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| Hardware and OS | Coolpad D539 | Xiaomi Redmi Note 8 |
| Operating system | Android 2.1 Eclair | Android 9.0 (Pie); MIUI 10 |
| Processor | Cortex A8 Processor clock: 600 MHz | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Qualcomm SDM665 Snapdragon 665 (11 nm) | |
| RAM memory | 256 MB | |
| GPU | Adreno 610 | |
| Internal memory | 512 MB | 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM |
| Memory cards | yes microSD, microSDHC (up to 32 GB) | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Display | Coolpad D539 | Xiaomi Redmi Note 8 |
| Display | Color / TFT 256k colors 320 x 480 px (3.50") 165 ppi ~49.0% screen-to-body ratio | |
| Type | IPS LCD | |
| Size | 6.3" inc | |
| Resolution | 1080 x 2340 px | |
| Protection | Corning Gorilla Glass 5 | |
| Touchscreen | yes | capacitive touchscreen |
| Screen-to-Body Ratio | 81.7% | |
| Display area | 97.4 cm2 | |
| Display aspect ratio | 19.5:9 (height:width) | |
| Pixel Density | 409 PPI | |
| Colors | 16M | |
| Connectivity | Coolpad D539 | Xiaomi Redmi Note 8 |
| NFC | yes | |
| WiFi | yes v802.11 b/g | |
| Hotspot WiFi | yes | |
| DLNA | yes | |
| IrDA | yes | |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| WAP | yes | |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500) | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | yes v2.1 EDR | 4.2, A2DP, LE |
| Edge | yes | Yes |
| GPRS | yes | Yes |
| GPS | yes | Yes, with A-GPS, GLONASS, BDS |
| Speed | HSPA 42.2/11.5 Mbps, LTE-A | |
| USB | yes v2.0 | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| Camera | Coolpad D539 | Xiaomi Redmi Note 8 |
| Image Resolution | 2048x1536 px | |
| Flash | yes | |
| Digital zoom | yes | |
| Video formats | H.263, MPEG4 | |
| Video resolution | 1280x720 | |
| Main camera | 3 Mpx | 48 MP, Quad |
| Specs | 48 MP, f/1.8, 26mm (wide), 1/2", 0.8µm, PDAF -8 MP, f/2.2, 13mm (ultrawide), 1/4", 1.12µm -2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera) -2 MP, f/2.4, 1/5", 1.75µm, depth sensor | |
| Features | LED flash, HDR, panorama | |
| Video | 2160p@30fps, 1080p@30/60/120fps, gyro-EIS | |
| Selfie camera | 13 MP, Single | |
| Multimedia | Coolpad D539 | Xiaomi Redmi Note 8 |
| 3.5 mm Jack | Yes | |
| Radio | yes | FM radio |
| Design | Coolpad D539 | Xiaomi Redmi Note 8 |
| Colors | Neptune Blue, Moonlight White, Space Black | |
| Body build | Front/back glass (Gorilla Glass 5) | |
| Dimensions | 120.00 x 62.00 x 15.30 mm | 158.3 x 75.3 x 8.4 mm |
| Weight | 120.00 g | 190 g |
| Battery | Coolpad D539 | Xiaomi Redmi Note 8 |
| Capacity | Li-Ion 2500 mAh | |
| Wireless battery charging | yes | |
| Battery capacity | 4000 mAh, Non-removable Li-Po | |
| Other | Coolpad D539 | Xiaomi Redmi Note 8 |
| Accelerometer | yes | |
| Altimeter | yes | |
| Barometer | yes | |
| Fingerprint scanner | yes | |
| Gravity | yes | |
| Gyroscope | yes | |
| Hall-effect | yes | |
| Hygrometer | yes | |
| Iris scanner | yes | |
| Magnetometer | yes | |
| Proximity | yes | |
| Thermometer | yes | |
| SAR | SAR - 0.26 W/kg (head) 1.00 W/kg (body) SAR EU - 0.26 W/kg (head) 1.00 W/kg (body) | |
| Release date | 2019, August | |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass , Infrared port |
