| Jiake S1 |
Xiaomi Redmi Note 9 Pro |
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| Hardware and OS | Jiake S1 | Xiaomi Redmi Note 9 Pro |
| Operating system | Android 4.4 KitKat | Android 10.0; MIUI 11 |
| Processor | Dual-Core (2x Cortex A7 1.3 GHz) | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver) |
| Chipset | MediaTek MT6572 (28 nm) | Qualcomm SM7125 Snapdragon 720G (8 nm) |
| GPU | ARM Mali-400 MP | Adreno 618 |
| Internal memory | 512MB 4GB, 512MB · 4GB | 64GB 4GB RAM, 128GB 6GB RAM |
| External memory | microSDXC (dedicated slot) | |
| Display | Jiake S1 | Xiaomi Redmi Note 9 Pro |
| Type | LCD IPS | IPS LCD |
| Size | 5" inc | 6.67" inc |
| Resolution | 540 x 960 px | 1080 x 2400 px |
| Display colors | 16M | |
| Protection | Corning Gorilla Glass 5 | |
| Screen area | cm2 | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Screen format | 16:9 (height:width) | |
| Screen-to-Body Ratio | 84.5% | |
| Screen to body ratio | 69% | |
| Display area | 107.4 cm2 | |
| PPI /points per inch/ | 220 PPI | |
| Display aspect ratio | 20:9 (height:width) | |
| Pixel Density | 395 PPI | |
| Colors | 16M | |
| Other | 450 nits typ. brightness (advertised) | |
| Connectivity | Jiake S1 | Xiaomi Redmi Note 9 Pro |
| NFC | No | |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 8(900), 40(2300), 41(2500) | |
| Wi-Fi | 802.11b, 802.11g, 802.11n,Wi-Fi Hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Network | 2G / 3G / | GSM / HSPA / LTE |
| SIM card | Dual SIM, dual stand-by (Micro SIM Micro SIM) | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | Bluetooth 4.0, A2DP | 5.0, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | GPS, A-GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS, NavIC |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A | |
| USB | Yes | 2.0, Type-C 1.0 reversible connector |
| Camera | Jiake S1 | Xiaomi Redmi Note 9 Pro |
| Rear camera, main | 5 MP, Single | |
| Camera specs | 5 MP, Unknow, (wide) | |
| Functions | LED flash | |
| Front camera, selfie | 2 MP, Single | |
| Main camera | 48 MP, Quad | |
| Specifications | 2 MP, ?/ | |
| Specs | 48 MP, f/1.8, (wide), 1/2.25", 0.8µm, PDAF -8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm -5 MP, f/2.4, (macro), 1.12µm -2 MP, f/2.4, (depth) | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p video | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS |
| Selfie camera | 16 MP, Single | |
| Multimedia | Jiake S1 | Xiaomi Redmi Note 9 Pro |
| Headphone jack | Yes | |
| 3.5 mm Jack | Yes | |
| Radio | Yes | FM radio, recording |
| Design | Jiake S1 | Xiaomi Redmi Note 9 Pro |
| Dimensions (HxWxD) | 141.0 x70.6 x 8.3 mm | 5.55 x 2.78 x 0.33 in | |
| Colors | White, Gold, Gray | Aurora Blue, Glacier White, Interstellar Black |
| Body build | Plastic | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame |
| Dimensions | 165.8 x 76.7 x 8.8 mm | |
| Weight | 125 g | 4.41 oz | 209 g |
| Other features | Jiake S1 | Xiaomi Redmi Note 9 Pro |
| Sensors | Proximity, Accelerometer | |
| Battery | Jiake S1 | Xiaomi Redmi Note 9 Pro |
| Battery | 2800 mAh, Li-Ion, Removable | |
| Battery capacity | 5020 mAh, Non-removable Li-Po | |
| Other | Jiake S1 | Xiaomi Redmi Note 9 Pro |
| Release date | 2020, March 12 | |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass , Infrared port |
