| General Mobile GM 21 Pro |
Xiaomi Redmi Note 8 |
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| Hardware and OS | General Mobile GM 21 Pro | Xiaomi Redmi Note 8 |
| Operating system | Android 11 | Android 9.0 (Pie); MIUI 10 |
| Processor | Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Mediatek MT6785 Helio G90 (12 nm) | Qualcomm SDM665 Snapdragon 665 (11 nm) |
| GPU | Mali-G76 MC4 | Adreno 610 |
| RAM | 6GB 128GB | |
| Internal memory | 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM | |
| Memory Card Slot | Yes, up to 256GB via microSD card (uses SIM 2 slot) | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Display | General Mobile GM 21 Pro | Xiaomi Redmi Note 8 |
| Type | IPS LCD capacitive touchscreen, 16M colors | IPS LCD |
| Size | 6.76 inches, (84.3% screen-to-body ratio) | 6.3" inc |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio | 1080 x 2340 px |
| Protection | Corning Gorilla Glass 5 | |
| Touchscreen | 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 | General Mobile GM 21 Pro | Xiaomi Redmi Note 8 |
| Technology | GSM / HSPA / LTE | |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 and SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| NFC | No | |
| 3G Network | HSPA 42.2/5.76 Mbps, LTE | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE band 1, 2, 3, 5, 7, 8, 20, 38, 40 | 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, Wi-Fi Direct, hotspot | 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 | Bluetooth 5.0, A2DP | 4.2, A2DP, LE |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, BDS |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/11.5 Mbps, LTE-A |
| USB | USB Type-C 2.0 | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| Camera | General Mobile GM 21 Pro | Xiaomi Redmi Note 8 |
| Camera Features | Autofocus / Continuous shooting / Digital zoom / HDR / Touch focus / Face detection / LED flash | |
| Camera Type | Quadruple Lenses | |
| Video Recording | 1080p@30fps | |
| Video Resolution | 1080p | |
| Main camera | Main: 48MP, f/1.8, PDAF Ultrawide: 5MP, f/2.2, 115? FoV, Macro: 2MP, 2.4 Depth: 2MP, 2.4 | 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 | 16-megapixel punch hole camera | 13 MP, Single |
| Multimedia | General Mobile GM 21 Pro | Xiaomi Redmi Note 8 |
| Headphone jack | Yes, 3.5mm audio jack | |
| Loudspeaker | Yes | |
| Speaker Location | Placed at the base of the phone | |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Other features | General Mobile GM 21 Pro | Xiaomi Redmi Note 8 |
| Colors | Graphite, Moonstone | |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | |
| Design | General Mobile GM 21 Pro | Xiaomi Redmi Note 8 |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Colors | Neptune Blue, Moonlight White, Space Black | |
| Body build | Glass front / Plastic Body | Front/back glass (Gorilla Glass 5) |
| Dimensions | 165.24 x 76.95 x 8.99 mm | 158.3 x 75.3 x 8.4 mm |
| Weight | 205 grams | 190 g |
| Battery | General Mobile GM 21 Pro | Xiaomi Redmi Note 8 |
| Capacity | Non-removable Li-Ion 5000mAh battery | |
| Battery capacity | 4000 mAh, Non-removable Li-Po | |
| Other | General Mobile GM 21 Pro | Xiaomi Redmi Note 8 |
| 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 |
