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Xiaomi Redmi K30 vs Redmi K20

Here we compared two mid-range smartphones: the 6.67-inch Xiaomi Redmi K30 (with Qualcomm Snapdragon 730G) that was released on December 10, 2019, against the Xiaomi Redmi K20, which is powered by Qualcomm Snapdragon 730 and came out 6 months before. 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 Redmi K30
  • Higher display refresh rate – 120 Hz
  • Optical image stabilization
  • Expandable storage via MicroSD card up to 256GB
  • Comes with 500 mAh larger battery capacity: 4500 vs 4000 mAh
  • Delivers 12% higher maximum brightness (724 against 647 nits)
  • The phone is 6-months newer
  • Has a built-in infrared port
Reasons to consider the Xiaomi Redmi K20
  • The rear camera has a 2x optical zoom
  • Super AMOLED display (versus competitor's IPS LCD)
  • Weighs 17 grams less

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 IPS LCD Super AMOLED
Size 6.67 inches 6.39 inches
Resolution 1080 x 2400 pixels 1080 x 2340 pixels
Aspect ratio 20:9 19.5:9
PPI 395 ppi 403 ppi
Refresh rate 120 Hz 60 Hz
HDR support Yes, HDR10 Yes, HDR10
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Screen-to-body ratio 84.8% 86.1%
Display features - Always-On Display
- DC Dimming
- Always-On Display
Max. Brightness
Redmi K30 +12%
724 nits
647 nits

Design and build

Height 165.3 mm (6.51 inches) 156.7 mm (6.17 inches)
Width 76.6 mm (3.02 inches) 74.3 mm (2.93 inches)
Thickness 8.8 mm (0.35 inches) 8.8 mm (0.35 inches)
Weight 208 gramm (7.34 oz) 191 gramm (6.74 oz)
Waterproof No No
Rear material Glass Glass
Frame material Plastic Metal
Colors White, Blue, Red, Purple Black, Blue, Red
Fingerprint scanner Yes, in home button Yes, in-display
Screen-to-body ratio
84.8%
Redmi K20 +2%
86.1%

Performance

Tests of Xiaomi Redmi K30 and Xiaomi Redmi K20 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 730G Qualcomm Snapdragon 730
Max. clock 2200 MHz 2200 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 1.8 GHz: Kryo 470 Silver (Cortex-A55)
- 2 cores at 2.2 GHz: Kryo 470 Gold (Cortex-A76)
- 6 cores at 1.8 GHz: Kryo 470 Silver (Cortex-A55)
- 2 cores at 2.2 GHz: Kryo 470 Gold (Cortex-A76)
Lithography process 8 nanometers 8 nanometers
Graphics Adreno 618 Adreno 618
GPU clock 575 MHz 500 MHz
FLOPS ~422 GFLOPS ~386 GFLOPS
Memory
RAM size 6, 8 GB 6, 8 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage size 64, 128, 256 GB 64, 128, 256 GB
Storage type UFS 2.1 UFS 2.1
Memory card MicroSD No
Memory card max. size Up to 256 GB -

Benchmarks

Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
Redmi K30 +3%
1719
1663
AnTuTu Benchmark 8
Redmi K30 +9%
277062
253464
AnTuTu Smartphone Scores (227th and 245th place)

Software

Operating system Android 10 Android 9.0 (Can be upgraded to Android 10)
ROM MIUI 12 MIUI 12
OS size - 11.3 GB

Battery

Specifications
Capacity 4500 mAh 4000 mAh
Charge power 27 W 18 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes (100% in 70 min) Yes, Quick Charge 4.0 (50% in 30 min)
Full charging time 1:10 hr 1:25 hr

Battery life tests

Web browsing (Wi-Fi)
Redmi K30 +25%
14:14 hr
11:35 hr
Watching videos (Player)
12:19 hr
Redmi K20 +41%
17:19 hr
Talk (3G)
Redmi K30 +33%
44:27 hr
33:20 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 64 megapixels 48 megapixels
Image resolution 9000 x 7000 8000 x 6000
Zoom Digital Optical, 2x
Flash Dual LED Dual LED
Stabilization Optical Digital
8K video recording No No
4K video recording Up to 30FPS Up to 30FPS
1080p video recording Up to 120FPS Up to 240FPS
Slow motion 960 FPS (720p) 960 FPS (1080p)
Angle of widest lens 120° 124°
Lenses 4 (64 MP + 8 MP + 2 MP + 2 MP) 3 (48 MP + 8 MP + 13 MP)
Wide (main) lens - 64 MP
- Aperture: f/1.9
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/1.7", Sony IMX686 (Exmor-RS CMOS)
- Phase autofocus
- Optical stabilization
- 48 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2.25", Sony IMX582 Exmor RS (BSI CMOS)
- Phase autofocus
Telephoto lens - - 8 MP
- Aperture: f/2.4
- Focal length: 53 mm
- Pixel size: 1.12 micron
- Sensor: 1/4", Omnivision OV8865 (BSI CMOS)
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
- Sensor: 1/4", OmniVision OV8856 (CMOS)
- 13 MP
- Aperture: f/2.4
- Focal length: 12 mm
- Pixel size: 1.12 micron
- Sensor: 1/3.1", Samsung S5K3L6 (ISOCELL CMOS)
Macro lens - 2 MP
- Aperture: f/2.4
- Focal length: 1.94 mm
- Pixel size: 1.75 micron
- Sensor: 1/5", GalaxyCore GC02M1 (CMOS)
-
Depth lens - 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
- Sensor: 1/5", GalaxyCore GC02M1 (CMOS)
-
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Selfie camera
Megapixels 20 megapixels 20 megapixels
Image resolution 5963 x 3354 5184 x 3880
Aperture f/2.2 f/2.2
Focal length 27 mm 18 mm
Pixel size 0.8 microns 0.8 microns
Sensor type ISOCELL CMOS CMOS
Sensor size 1/3.4" 1/3.4"
Video resolution 1080p (Full HD) при 30 FPS 1080p (Full HD) при 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 b/g/n/ac) Wi-Fi 5 (802.11 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
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- USB-Host 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 Yes No
LTE Cat* 15 15
5G support Yes No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes No
Dolby Atmos No No
Speakers test
Max. loudness
n/a
81.2 dB

Other

Category Mid-range Mid-range
Announced December 2019 May 2019
Release date February 2020 July 2019
Launch price ~ 287 USD ~ 250 USD
SAR (head) 0.47 W/kg -
SAR (body) 1.16 W/kg -
Sensors - 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

If the display, performance, and camera are more important to you, then choose the Xiaomi Redmi K30. But if the design is more of a priority – go for the Xiaomi Redmi K20.

Cast your vote

So, which phone would you choose?
9 (75%)
3 (25%)
Total votes: 12

User opinions

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