| BenQ-Siemens P51 |
Xiaomi Redmi Note 8 |
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| Hardware and OS | BenQ-Siemens P51 | Xiaomi Redmi Note 8 |
| Operating system | Microsoft Windows Mobile 5.0 PocketPC | Android 9.0 (Pie); MIUI 10 |
| Processor | 32-bit Intel XScale PXA272 416 MHz | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Qualcomm SDM665 Snapdragon 665 (11 nm) | |
| GPU | Adreno 610 | |
| Internal memory | 64MB RAM, 192MB ROM | 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM |
| External memory | MMC/SDIO | microSD, up to 256 GB (dedicated slot) |
| Display | BenQ-Siemens P51 | Xiaomi Redmi Note 8 |
| Type | TFT resistive touchscreen, 256K colors | IPS LCD |
| Size | 2.8 inches, 42 x 57 mm, 24.3 cm2 | 6.3" inc |
| Resolution | 240 x 320 pixels, 4:3 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 | |
| Main Camera | BenQ-Siemens P51 | Xiaomi Redmi Note 8 |
| Camera | 1.3 MP | |
| Video | QCIF | |
| Selfie camera | BenQ-Siemens P51 | Xiaomi Redmi Note 8 |
| Camera | No | |
| Connectivity | BenQ-Siemens P51 | Xiaomi Redmi Note 8 |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| Technology | GSM | |
| 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 | |
| WLAN | Wi-Fi 802.11b/g, VoIP via Wi-Fi | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 1.2, A2DP | 4.2, A2DP, LE |
| Edge | No | Yes |
| GPRS | Class 10 | Yes |
| GPS | Yes | Yes, with A-GPS, GLONASS, BDS |
| Speed | HSPA 42.2/11.5 Mbps, LTE-A | |
| USB | Proprietary | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| Camera | BenQ-Siemens P51 | Xiaomi Redmi Note 8 |
| Main camera | 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 | BenQ-Siemens P51 | Xiaomi Redmi Note 8 |
| Alert types | Vibration; Downloadable polyphonic, MP3 ringtones | |
| Loudspeaker | Yes | |
| 3.5 mm Jack | No | Yes |
| Radio | No | FM radio |
| Design | BenQ-Siemens P51 | Xiaomi Redmi Note 8 |
| SIM | Mini-SIM | |
| Keyboard | QWERTY | |
| Colors | Neptune Blue, Moonlight White, Space Black | |
| Body build | Front/back glass (Gorilla Glass 5) | |
| Dimensions | 122 x 60 x 20 mm, 130 cc (4.80 x 2.36 x 0.79 in) | 158.3 x 75.3 x 8.4 mm |
| Weight | 170 g (6.00 oz) | 190 g |
| Battery | BenQ-Siemens P51 | Xiaomi Redmi Note 8 |
| Capacity | Removable Li-Ion 1370 mAh battery | |
| Stand-by | Up to 150 h | |
| Talk time | Up to 4 h | |
| Battery capacity | 4000 mAh, Non-removable Li-Po | |
| Other | BenQ-Siemens P51 | 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 |
