| ZTE Blade A521 |
Xiaomi Redmi Note 8 |
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| Hardware and OS | ZTE Blade A521 | Xiaomi Redmi Note 8 |
| Operating system | Android 7.0 Nougat | Android 9.0 (Pie); MIUI 10 |
| Processor | Quad-Core 1.1GHz ARM Cortex A7 | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Qualcomm SDM665 Snapdragon 665 (11 nm) | |
| GPU | Qualcomm Adreno 304 | Adreno 610 |
| RAM | 2GB | |
| Internal memory | 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM | |
| Internal Storage | 16GB | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| User Interface | Yes with MiFavor UI | |
| Display | ZTE Blade A521 | Xiaomi Redmi Note 8 |
| Type | IPS, LCD capacitive touchscreen | IPS LCD |
| Size | 5.0 inches HD | 6.3" inc |
| Resolution | 1280 x 720 Pixels, 24 bit color depth | 1080 x 2340 px |
| Protection | Yes Support | Corning Gorilla Glass 5 |
| Touchscreen | Yes Multi Touch Support | capacitive touchscreen |
| Screen-to-Body Ratio | 81.7% | |
| Display area | 97.4 cm2 | |
| Display aspect ratio | 19.5:9 (height:width) | |
| Pixel Density | ~ 294 ppi | 409 PPI |
| Features | HD Display, ~ 294 PPI , Capacitive , Multi-touch, Scratch Resistant | |
| Colors | 16M Colors | 16M |
| Connectivity | ZTE Blade A521 | Xiaomi Redmi Note 8 |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | LTE : 800 / 900 / 1800 / 2100 / 2600 MHz | LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500) |
| NFC | No | |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi 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) | |
| SIM | Nano SIM | |
| Bluetooth | 4.2, A2DP, LE | |
| Dual SIM | (Nano, Nano) | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with GPS, A-GPS | Yes, with A-GPS, GLONASS, BDS |
| Speed | LTE Cat 4 150 Mbps Download, 50 Mbps Upload, HSUPA 5.76 Mbps Upload, HSDPA 21 Mbps Download, EV-DO Rev.A 1.8 Mbps Upload, 3.1 Mbps Download | HSPA 42.2/11.5 Mbps, LTE-A |
| USB | Micro USBv2.0 With Charging and Mass Storage Function | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| Camera | ZTE Blade A521 | Xiaomi Redmi Note 8 |
| Image | 3264 x 2448 Pixels | |
| Main camera | 8 Megapixels with Single-LED and AF Rear 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 | Yes with Single-LED Flash | LED flash, HDR, panorama |
| Video | 2160p@30fps, 1080p@30/60/120fps, gyro-EIS | |
| Selfie camera | 8 Megapixels | 13 MP, Single |
| Multimedia | ZTE Blade A521 | Xiaomi Redmi Note 8 |
| Loudspeaker | Yes | |
| Video Playback | Up to 5 Hours | |
| Video Out | Yes With Wireless Media Link | |
| Ring Tones | MP3 ringtones | |
| 3.5 mm Jack | yes | Yes |
| Radio | Yes | FM radio |
| Design | ZTE Blade A521 | Xiaomi Redmi Note 8 |
| Colors | Neptune Blue, Moonlight White, Space Black | |
| Body build | Front/back glass (Gorilla Glass 5) | |
| Dimensions | 144X71X8.4mm | 158.3 x 75.3 x 8.4 mm |
| Weight | 137 grams | 190 g |
| Battery | ZTE Blade A521 | Xiaomi Redmi Note 8 |
| Capacity | 2,400 mAh | |
| Placement | Non-Removable | |
| Battery capacity | 4000 mAh, Non-removable Li-Po | |
| Other | ZTE Blade A521 | 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 | Accelerometer, Proximity, Light | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass , Infrared port |
