Xiaomi Redmi Note 7 vs Redmi 9A
Here we compared two smartphones: the 6.3-inch Xiaomi Redmi Note 7 (with Qualcomm Snapdragon 660) that was released on January 10, 2019, against the Xiaomi Redmi 9A, which is powered by MediaTek Helio G25 and came out 18 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Key differences
Reasons to consider the Xiaomi Redmi Note 7
- 52% higher pixel density (409 vs 269 PPI)
- 48% better performance in AnTuTu Benchmark (225K versus 152K)
- Modern USB Type-C port
- Supports 18W fast charging
- Fingerprint scanner
- Compatible with Wi-Fi 5 wireless networks
- Delivers 24% higher peak brightness (542 against 436 nits)
- Slow-motion recording at 120FPS
- 10% faster in single-core GeekBench 6 test: 521 and 472 points
- Has a built-in infrared port
Reasons to consider the Xiaomi Redmi 9A
- Comes with 1000 mAh larger battery capacity: 5000 vs 4000 mAh
- More recent OS version: Android 11 versus 10
- The phone is 1-year and 6-months newer
- More energy-efficient CPU – MediaTek Helio G25
Review
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (
*
) are approximate and may change in the future as we gather more data.
Value for money
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | IPS LCD | IPS LCD |
| Size | 6.3 inches | 6.53 inches |
| Resolution | 1080 x 2340 pixels | 720 x 1600 pixels |
| Aspect ratio | 19.5:9 | 20:9 |
| PPI | 409 ppi | 269 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Adaptive refresh rate | No | No |
| Max rated brightness | 550 nits | 400 nits |
| HDR support | No | No |
| Screen protection | Corning Gorilla Glass 5 | Tempered glass |
| Screen-to-body ratio | 81.4% | 81.1% |
| RGB color space | 99.3% | 92.9% |
| PWM | 2336 Hz | - |
| Response time | 43.2 ms | 40 ms |
| Contrast | 1639:1 | 1318:1 |
Peak brightness test (auto)
Design and build
| Height | 159.2 mm (6.27 inches) | 164.9 mm (6.49 inches) |
| Width | 75.2 mm (2.96 inches) | 77 mm (3.03 inches) |
| Thickness | 8.1 mm (0.32 inches) | 9 mm (0.35 inches) |
| Weight | 186 g (6.56 oz) | 194 g (6.84 oz) |
| Waterproof | No | No |
| Rear material | Glass | Plastic |
| Frame material | Plastic | Plastic |
| Colors | Black, Blue | Gray, Blue, Green |
| Fingerprint scanner | Yes, rear | No |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 660 | MediaTek Helio G25 |
| Max clock | 2200 MHz | 2000 MHz |
| CPU cores | 8 (4 + 4) | 8 (4 + 4) |
| Architecture |
- 4 cores at 1.84 GHz: Kryo 260 Silver (Cortex-A53)
- 4 cores at 2.2 GHz: Kryo 260 Gold (Cortex-A73) |
- 4 cores at 1.5 GHz: Cortex-A53
- 4 cores at 2 GHz: Cortex-A53 |
| Lithography process | 14 nanometers | 12 nanometers |
| Graphics | Adreno 512 | PowerVR GE8320 |
| GPU shading units | 128 | 32 |
| GPU clock | 850 MHz | 650 MHz |
| FLOPS | ~217.6 GFLOPS | ~41.8 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
| CPU | 66281 | 54603 |
| GPU | 46008 | 10386 |
| Memory | 55092 | 41746 |
| UX | 58050 | 44535 |
| Total score | 225927 | 152420 |
3DMark Wild Life Performance
| Max surface temperature | 37.6 °C | 43.2 °C |
| Stability | 96% | - |
| Graphics test | 2 FPS | - |
| Graphics score | 373 | - |
PCMark 3.0
| Web score | 5132 | - |
| Video editing | 5253 | - |
| Photo editing | 10066 | - |
| Data manipulation | 5412 | - |
| Writing score | 6411 | - |
Memory
| RAM size | 3, 4 GB | 2, 4, 6 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | 1866 MHz | 2133 MHz |
| Channels | 2 | 2 |
| Storage size | 32, 64, 128 GB | 32, 64, 128 GB |
| Storage type | eMMC 5.1 | eMMC 5.1 |
| Memory card | MicroSD | MicroSD |
| Memory card max size | Up to 256 GB | Up to 256 GB |
Software
| Operating system | Android 9 (Can be upgraded to Android 10) | Android 10 (Can be upgraded to Android 11) |
| ROM | MIUI 12.5 | MIUI 12.5 Enhanced |
| OS size | 13 GB | 11 GB |
Battery
| Capacity | 4000 mAh | 5000 mAh |
| Max charge power | 18 W | 10 W |
| Battery type | Li-Po | Li-Po |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | No | No |
| Fast charging | Yes, Quick Charge 4 (60% in 50 min) | No |
| Full charging time | 1:50 hr | 2:55 hr |
| Web browsing | 09:39 hr | - |
| Watching video | 11:52 hr | - |
| Gaming | 04:14 hr | - |
| Standby | 106 hr | - |
General battery life
Camera
| Matrix | 48 megapixels | 13 megapixels |
| Image resolution | 8000 x 6000 | 4128 x 3096 |
| Zoom | Digital | Digital |
| Flash | Dual LED | LED |
| Stabilization | Digital | Digital |
| 8K video recording | No | No |
| 4K video recording | No | No |
| 1080p video recording | Up to 60FPS | Up to 30FPS |
| Slow motion | 120 FPS (1080p) | No |
| Lenses | 2 (48 MP + 5 MP) | 1 (13 MP) |
| Wide (main) lens |
- 48 MP
- Aperture: f/1.8 - Pixel size: 0.8 micron - Sensor: 1/2", Samsung S5KGM1 (ISOCELL CMOS) - Phase autofocus |
- 13 MP
- Aperture: f/2.2 - Focal length: 28 mm - Pixel size: 1 micron - Phase autofocus |
| Depth lens |
- 5 MP
- Aperture: f/2.0 - Pixel size: 1.12 micron - Sensor: 1/5.0", Samsung S5K5E8 (ISOCELL CMOS) |
- |
| Camera features |
- Bokeh mode
- Pro mode - RAW support |
- |
| Megapixels | 13 megapixels | 5 megapixels |
| Image resolution | 4160 x 3120 | 2560 x 1960 |
| Aperture | f/2.2 | f/2.2 |
| Pixel size | 1.12 microns | 1.12 microns |
| Sensor type | PureCel | CMOS |
| Sensor size | 1/3.1" | - |
| Video resolution | 1080p (Full HD) at 30 FPS | 1080p (Full HD) at 30 FPS |
Connectivity
| Wi-Fi standard | Wi-Fi 5 (802.11 a/b/g/n/ac) | Wi-Fi 4 (802.11 a/b/g/n) |
| Wi-Fi features |
- Dual Band
- Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Wi-Fi Direct
- Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5 | 5 |
| Bluetooth features | LE, A2DP | LE, HID, A2DP |
| USB type | USB Type-C | Micro USB |
| USB version | 2 | 2 |
| USB features |
- Charging
- USB-Storage mode - OTG |
- Charging
- USB-Storage mode - OTG |
| GPS | GPS, GLONASS, Beidou, Galileo | GPS, GLONASS, Beidou, Galileo |
| NFC * | No | No |
| Infrared port | Yes | No |
| Number of SIM * | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support * | No | No |
| Hybrid slot | Yes | No |
| LTE Cat * | 13 | 4 |
| 5G support | - | No |
Sound
| Speakers | Mono | Mono |
| Headphone audio jack | Yes | Yes |
| FM radio | Yes | Yes |
| Dolby Atmos | No | No |
Speakers test
Max loudness
Other
| Category | Mid-range | Budget |
| Announced | January 2019 | June 2020 |
| Release date | January 2019 | August 2020 |
| SAR (head) | 0.59 W/kg | 0.398 W/kg |
| SAR (body) | 1.27 W/kg | 0.901 W/kg |
| Sensors |
- Proximity sensor
- Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Proximity sensor
- Accelerometer - Ambient light sensor |
*
Disclaimer!
NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
If the display, camera, performance, gaming, connectivity, design, and sound are more important to you, then choose the Xiaomi Redmi Note 7 . But if the battery life and software are more of a priority – go for the Xiaomi Redmi 9A .