Home > Smartphone comparison > Mi 9 vs Galaxy A70 – which one to choose?

Xiaomi Mi 9 vs Samsung Galaxy A70

Here we compared two smartphones: the 6.39-inch Xiaomi Mi 9 (with Qualcomm Snapdragon 855) that was released on February 20, 2019, against the Samsung Galaxy A70, which is powered by Qualcomm Snapdragon 675 and came out 1 month after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Mi 9
  • 2x better performance in AnTuTu Benchmark (440K versus 221K)
  • The rear camera has a 2x optical zoom
  • Supports wireless charging up to 20W
  • Slow-motion recording at 960FPS
  • More energy-efficient CPU – Snapdragon 855
  • 28% faster in single-core GeekBench 5 test: 620 and 486 points
  • Has a built-in infrared port
Reasons to consider the Samsung Galaxy A70
  • Comes with 1200 mAh larger battery capacity: 4500 vs 3300 mAh
  • Shows 13% longer battery life (103 vs 91 hours)
  • Expandable storage via MicroSD card up to 512GB
  • Has a 0.31 inch larger screen size
  • More recent OS version: Android 11 versus 10
  • Supports Dolby Atmos sound technology
  • Includes a 3.5 mm headphone audio jack port

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type AMOLED Super AMOLED
Size 6.39 inches 6.7 inches
Resolution 1080 x 2340 pixels 1080 x 2400 pixels
Aspect ratio 19.5:9 20:9
PPI 403 ppi 393 ppi
Refresh rate 60 Hz 60 Hz
HDR support Yes, HDR10 -
Screen protection Corning Gorilla Glass 6 Corning Gorilla Glass 3
Screen-to-body ratio 85.2% 86%
Display features - Always-On Display
- DC Dimming
- Always-On Display
Display tests
RGB color space 95.4% -
PWM 245 Hz -
Response time 4.2 ms -
Contrast ∞ Infinity -
Max. Brightness
Mi 9 +3%
627 nits
609 nits
Sources: NotebookCheck [1]

Design and build

Height 157.5 mm (6.2 inches) 164.3 mm (6.47 inches)
Width 74.6 mm (2.94 inches) 76.7 mm (3.02 inches)
Thickness 7.6 mm (0.3 inches) 7.9 mm (0.31 inches)
Weight 173 gramm (6.1 oz) 183 gramm (6.46 oz)
Waterproof No No
Rear material Glass Plastic
Frame material Metal Plastic
Colors Black, Blue, Purple White, Black, Blue
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio
85.2%
86%

Performance

Tests of Xiaomi Mi 9 and Samsung Galaxy A70 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 855 Qualcomm Snapdragon 675
Max. clock 2840 MHz 2000 MHz
CPU cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4 cores at 1.8 GHz: Cortex-A55 (Kryo 485 Silver)
- 3 cores at 2.42 GHz: Cortex-A76 (Kryo 485 Gold)
- 1 core at 2.84 GHz: Cortex-A76 (Kryo 485 Gold)
- 6 cores at 1.7 GHz: Kryo 460 Silver (Cortex-A55)
- 2 cores at 2 GHz: Kryo 460 Gold (Cortex-A76)
L3 cache 2 MB -
Lithography process 7 nanometers 11 nanometers
Graphics Adreno 640 Adreno 612
GPU clock 585 MHz 700-750 MHz
FLOPS ~899 GFLOPS ~328.2 GFLOPS
Memory
RAM size 6 GB 6 GB
Memory type LPDDR4X LPDDR4X
Memory clock 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage size 128 GB 128 GB
Storage type UFS 2.1 UFS 2.1
Memory card No MicroSD
Memory card max. size - Up to 512 GB

Benchmarks

Geekbench 5 (Single-Core)
Mi 9 +28%
620
Geekbench 5 (Multi-Core)
Mi 9 +153%
2393
AnTuTu Benchmark 7
Mi 9 +130%
397211
172409
AnTuTu Benchmark 8
Mi 9 +99%
440791
221569
AnTuTu 8 Results (111th and 300th place)

Software

Operating system Android 9.0 (Can be upgraded to Android 10) Android 9.0 (Can be upgraded to Android 11)
ROM MIUI 12.0.1 One UI 3.1
OS size 13.5 GB -

Battery

Specifications
Capacity 3300 mAh 4500 mAh
Charge power 27 W 25 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging Yes (20 W) No
Reverse charging No No
Fast charging Yes, Quick Charge 4 (50% in 30 min) Yes, Samsung Adaptive Fast Charge (45% in 30 min)
Full charging time 1:30 hr 2:00 hr

Battery life tests

Web browsing (Wi-Fi)
10:09 hr
Galaxy A70 +31%
13:24 hr
Watching videos (Player)
Mi 9 +10%
19:02 hr
17:35 hr
Talk (3G)
23:32 hr
Galaxy A70 +61%
37:50 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 32 megapixels
Image resolution 8000 x 6000 6500 x 4920
Zoom Optical, 2x Digital
Flash Dual LED Dual LED
Stabilization Digital Digital
8K video recording No No
4K video recording Up to 60FPS Up to 30FPS
1080p video recording Up to 240FPS Up to 240FPS
Slow motion 960 FPS (1080p) 240 FPS (1080p)
Angle of widest lens 117° 123°
Lenses 3 (48 MP + 12 MP + 16 MP) 3 (32 MP + 8 MP + 5 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Focal length: 27 mm
- Pixel size: 0.8 micron
- Sensor: 1/2", Sony IMX586 (Exmor-RS CMOS)
- Laser autofocus
- 32 MP
- Aperture: f/1.7
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2.8" (BSI CMOS)
- Phase autofocus
Telephoto lens - 12 MP
- Aperture: f/2.2
- Focal length: 54 mm
- Pixel size: 1 micron
- Sensor: 1/3.6", Samsung S5K3M5 (ISOCELL CMOS)
- Phase autofocus
-
Ultra-wide lens - 16 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1 micron
- Sensor: 1/3.0", Sony IMX481 (BSI CMOS)
- Phase autofocus
- 8 MP
- Aperture: f/2.2
- Focal length: 12 mm
- Sensor: 1/4" (CMOS)
Depth lens - - 5 MP
- Aperture: f/2.2
Camera features - Bokeh mode
- Pro mode
- RAW support
- Bokeh mode
- Pro mode
Samples Photo samples of Xiaomi Mi 9 from DxOMark -
Selfie camera
Megapixels 20 megapixels 32 megapixels
Image resolution 5184 x 3880 6528 x 4896
Aperture f/2.0 f/2.0
Focal length 18 mm -
Pixel size 0.9 microns -
Sensor type CMOS BSI CMOS
Sensor size 1/3" 1/2.8"
Video resolution 1080p (Full HD) при 30 FPS 1080p (Full HD) при 30 FPS

DxOMark camera tests

Photo quality
112
Video quality
99
Generic camera score
107

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
Bluetooth version 5 5
Bluetooth features LE, A2DP PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- USB-Host mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC* Yes Yes
Infrared port Yes No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 20 12
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack No Yes
FM radio No Yes
Dolby Atmos No Yes
Speakers test
Max. loudness
Mi 9 +7%
87.1 dB
81.7 dB

Other

Category Flagship Mid-range
Announced February 2019 March 2019
Release date April 2019 April 2019
Launch price ~ 487 USD ~ 375 USD
SAR (head) 1.389 W/kg 0.35 W/kg
SAR (body) 0.99 W/kg 1.48 W/kg
Sensors - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Xiaomi Mi 9 is definitely a better buy.

Cast your vote

So, which phone would you choose?
11 (47.8%)
12 (52.2%)
Total votes: 23

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