Samsung Galaxy A02 vs Xiaomi Redmi 9A
Compared 2 smartphones : Samsung Galaxy A02 Manufactured in January, 2021, with display 6.5 with chipsetMediatek MT6739W, vs Xiaomi Redmi 9A, Manufactured in August, 2020with chipsetMediaTek Helio G25. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Samsung Galaxy A02
- Higher pixel density: 270ppi
- Supports Dolby Atmos
- Includes charger
Reasons to choose Xiaomi Redmi 9A
- Larger display: 6.53in
- Lighter design: 194g vs 206g
Versions
| Memory Options | - 2/32 GB - 3/32 GB - 3/64 GB - 4/32 GB |
- 2/32 GB - 3/32 GB - 4/64 GB - 4/128 GB - 6/128 GB |
Review
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
Adjust each parameter’s importance to find the best match for you.
Tests & specs
Specs & test comparisonDisplay
| Type | PLS TFT | IPS LCD |
| Size | 6.5 in | 6.53 in |
| Resolution | 720x1600 pixels | 720x1600 pixels |
| Aspect ratio | 20:9 | 20:9 |
| Pixel density | 270 ppi | 269 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Adaptive refresh rate | No | No |
| Max brightness | n/a | 400 nits |
| HDR support | No | No |
| Screen-to-body ratio | 82 % | 81.1 % |
| sRGB gamut | n/a | 92.9 % |
| Response time | n/a | 40 ms |
| Contrast | n/a | 1318:1 |
Design & Build
| Height | 164 mm (6.46 in) | 164.9 mm (6.49 in) |
| Width | 75.9 mm (2.99 in) | 77 mm (3.03 in) |
| Thickness | 9.1 mm (0.36 in) | 9 mm (0.35 in) |
| Weight | 206 g (7.27 oz) | 194 g (6.84 oz) |
| Water resistance | No | No |
| Back panel | Plastic | Plastic |
| Frame | Plastic | Plastic |
| Colors | - Black - Blue - Red |
- Gray - Blue - Green |
| Fingerprint sensor | No | No |
Screen-to-body ratio
Performance
| Chipset | Mediatek MT6739W | MediaTek Helio G25 |
| Max Frequency | 1500 MHz | 2000 MHz |
| CPU Cores | 4 (4) | 8 (4 + 4) |
| Architecture | 4/1.5 (Cortex-A53) | - 4/1.5 (Cortex-A53) - 4/2 (Cortex-A53) |
| Process | TSMC | TSMC |
| Transistor Size | 28 nm | 12 nm |
| Neural Processor | No | No |
| Graphics | PowerVR GE8100 | PowerVR GE8320 |
| GPU Cores | 8 | 32 |
| GPU Frequency | 570 MHz | 650 MHz |
| FLOPS | 9.1 GFLOPS | 41.8 GFLOPS |
| Geekbench 6 (Single-Core) | 470 | 472 |
| Geekbench 6 (Multi-Core) | 1525 | 1524 |
| CPU | 50286 | 50728 |
| GPU | 6591 | 16844 |
| Memory | 34538 | 28611 |
| UX | 39957 | 28942 |
| NanoReview Score | 131372 | 125125 |
Memory
| RAM Size | 2 GB | - 2 GB - 4 GB - 6 GB |
| Memory Type | LPDDR3 | LPDDR4X |
| Memory Frequency | 933 MHz | 1600 MHz |
| Channels | 1 | 2 |
| Storage Capacity | 32 GB | - 32 GB - 64 GB - 128 GB |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Memory Card | MicroSD | MicroSD |
Software
| OS | Android 10 (Upgradeable to Android 11) | Android 10 (Upgradeable to Android 11) |
| OS Size | 9.4 GB | 11 GB |
| UI Skin | One UI Core 3.1 | MIUI 12.5 Enhanced |
Battery
| Volume | 5000 mAh | 5000 mAh |
| Max Charging Power | n/a | 10 W |
| Battery Type | Li-ion | Li-Po |
| Removable | No | No |
| Wireless Charging | No | No |
| Reverse Charging | No | No |
| Fast Charging | No | No |
| Full Charge Time | n/a | 2:55 h |
| Web Browsing | n/a | 10:08 h |
| Video Playback | n/a | 13:37 h |
| Games | n/a | 05:37 h |
| Standby Mode | n/a | 118 h |
Main camera
| Matrix | 13 MP | 13 MP |
| Photo resolution | 4128x3096 pixels | 4128x3096 pixels |
| Zoom | Digital | Digital |
| Flash | LED | LED |
| Stabilization | Digital | Digital |
| 8K Recording | No | No |
| 4K Recording | No | No |
| 1080p Recording | Yes (Up to 30 fps) | Yes (Up to 30 fps) |
| Slow Motion | No | No |
| Lenses count | Standard: 13 MP Macro: 2 MP |
Standard: 13 MP |
| Features | Bokeh effect |
| Matrix | 13 MP | 13 MP |
| Aperture | f/1.9 | f/2.2 |
| Focal length | n/a | 28 mm |
| Pixel size | 1.12 μm | 1 μm |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Digital |
Front camera
| Matrix | 5 MP | 5 MP |
| Photo resolution | 2560x1960 pixels | 2560x1960 pixels |
| Aperture | f/2.0 | f/2.2 |
| Sensor | CMOS | CMOS |
| Pixel size | n/a | 1.12 μm |
| Autofocus | No | No |
| Stabilization | No | Digital |
| Video resolution | 1080p (Full HD) at 30 fps | 1080p (Full HD) at 30 fps |
| TOF 3D sensor | No | No |
Connectivity
| Wi-Fi version | Wi-Fi 4 (802.11 a/b/g/n) | Wi-Fi 4 (802.11 a/b/g/n) |
| Wi-Fi features | - Wi-Fi Direct - Wi-Fi Hotspot |
- Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5 | 5 |
| Bluetooth features | LE, A2DP | LE, HID, A2DP |
| USB type | Micro USB | Micro USB |
| USB version | 2 | 2 |
| USB features | - Charging - USB Storage Mode |
- Charging - USB Storage Mode - OTG |
| GPS | - GPS - GLONASS |
- GPS - GLONASS - Beidou - Galileo |
| NFC* | No | No |
| Infrared Port | No | No |
| SIM Count* | 2 | 2 |
| SIM Type | Nano | Nano |
| SIM Mode | Dual SIM Standby | Dual SIM Standby |
| eSIM Support * | No | No |
| Hybrid Slot | No | No |
| 2G Bands | GSM850, GSM900, DCS1800 | GSM B2/3/5/8 |
| 3G Bands | UMTS B1 (2100), B5(850), B8 (900) | WCDMA B1/2/4/5/8 |
| LTE Bands* | LTE (B1/B3/B5/B7/B8/B20/B38/B40/B41) | LTE (B1/B2/B3/B4/B5/B7/B8/B20/B28) |
| LTE category | 4 | 4 |
| 5G Support | No | No |
Sound
| Speakers | Mono | Mono |
| 3.5 mm Jack | Yes | Yes |
| FM Radio | Yes | Yes |
| Dolby Atmos | Yes | No |
Other
| Class | Budget | Budget |
| Announced | January, 2021 yr | June, 2020 yr |
| Release Date | January, 2021 yr | August, 2020 yr |
| Launch Price ($) | 100 | 100 |
| Sensors | - Proximity Sensor - Accelerometer - Ambient Light Sensor |
- Proximity Sensor - Accelerometer - Ambient Light Sensor |
| Charger Included | Yes 10 W | n/a |
*
Attention!
Config, frequencies, NFC, and other specs may vary by region.
Results
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Survey
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