Xiaomi Redmi K20 (128GB) vs Asus ROG Phone 3 (512GB/16GB)

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Side by side comparison between Xiaomi Redmi K20 vs Asus ROG Phone 3 phones, differences, pros, cons and full specifications. What's the better?

8/12/2020 9:44 PM, updated: 10/16/2021 10:03 AM

Compare Asus ROG Phone 3 X Xiaomi Redmi K20 (128GB) 07Points

Specifications Compare Models Pictures

6.39"
AMOLED

1080x2340

48
MP

20mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

19Points Asus ROG Phone 3 (512GB/16GB) Compare Xiaomi Redmi K20 X

Specifications Compare Models Pictures

6.59"
AMOLED

1080x2340

64
MP

24mp

16GB
RAM

Octa-core

6000
mAh

(Non removable)

What's the better phone? Asus ROG Phone 3 (512GB/16GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

7 Advantages Xiaomi Redmi K20 (128GB)	vs	19 Advantages Asus ROG Phone 3 (512GB/16GB)
+191 grams (6.69 ounces)26% Lighter	vs	240 grams (8.4 ounces)
+8.8 millimeters (0.35 inches)12% Thinner	vs	9.85 millimeters (0.39 inches)
+403 PPI3% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	391 PPI
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C jack with 3.5mm jack adapter
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
2.2GHz 64bit Octa-core (8nm)	vs	+3.09GHz 64bit Octa-core (7nm)30% More powerful processor, you can open your applications faster
6GB LPDDR4X	vs	+16GB LPDDR5167% More RAM memory. Typically more responsive and better for multitasking.
128GB (109GB available)	vs	+512GB (479GB available)3 times More internal storage for applications and files
UFS 2.1	vs	+UFS 3.1Advantage Fastest write and read storage.
HDR10	vs	+HDR10+Advantage The HDR10+ display provides vibrant colors and more details
60Hz	vs	+144Hz140% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
16 million	vs	+1 billion62 times More colors on the screen is better quality images and videos
6.39"	vs	+6.59"3% Larger screen
(triple camera) 48MP + 8MP + 13MP	vs	+(triple camera) 64MP + 13MP + 5MP19% Higher resolution main camera
1/2" inches	vs	+1/1.72" inches16% The larger sensor camera lets you take photos with better depth.
(front) 20MP	vs	+(front) 24MP20% Higher resolution secondary camera to take pictures and selfies
4K UHD (3840x2160)	vs	+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera
4G LTE-A	vs	+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster
(4G LTE-A) 800 Mbps	vs	+(5G SA/NSA) 5000 Mbps5 times Faster for surfing the internet and download files
4000 mAh	vs	+6000 mAh50% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
18W	vs	+30W67% More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
802.11 a/b/g/n/ac [wifi5]	vs	+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
5.0 + A2DP/LE	vs	+5.1 + A2DP/LEAdvantage Bluetooth 5.1 + A2DP/LE is newer and faster
USB 2.0 Type-C, USB OTG On-The-Go	vs	+USB 3.1 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.

24 Common items in both devices

Aluminum frame, glass front/back

AMOLED

1080x2340 pixels

PDAF: phase detection autofocus

EIS: Digital stabilization

HDR photo on both cameras

f/1.8 (aperture)

+17 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Change model		Choose the model
Model	Redmi K20 (128GB)	ROG Phone 3 (512GB/16GB)
Other model names	Xiaomi Redmi K20 M1903F10A, M1903F10C, MZB7754IN, MZB7755IN	Asus ROG Phone 3 ZS661KS, ZS661KSF (16GB RAM)
Country or region available	China, India	(Global, International)
Brand	Xiaomi	Asus
Release date	6/1/2019	7/22/2020
Depth	8.8 millimeters (0.35 inches)	9.85 millimeters (0.39 inches)
Size (width x height)	74.3 x 156.7 millimeters (2.93 x 6.17 in)	78 x 171 millimeters (3.07 x 6.73 in)
Weight	191 grams (6.69 ounces)	240 grams (8.4 ounces)
Build, materials	Aluminum frame, glass front/back	Aluminum frame, glass front/back
Protection against water and others	Not supported	Not supported
📲 Display
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Display type	AMOLED	AMOLED
Screen size	6.39" inches	6.59" inches
Screen-to-body ratio	~86.1% (screen-to-body ratio)	~79.9% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	403 PPI	391 PPI
Colors	16 million	1 billion
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass 6
Refresh rate	60Hz	144Hz
Display features	600nits[typ] HDR10	650nits[typ] HDR10+
🤖 Operating System
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
System version	Android 9.0 Pie	Android 10
Firmware update	Android 10	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Chipset	64bit: Qualcomm Snapdragon 730 (SM7150-AA) (8nm)	64bit: Qualcomm Snapdragon 865+ (SM8250-AB) (7nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz Kryo 470 Gold (Dual-core) 6x 1.8GHz Kryo 470 Silver (Hexa-core)	Octa-core, 3 processors: 1x 3.09GHz Kryo 585 (Single-core) 3x 2.42GHz Kryo 585 (Triple-core) 4x 1.8GHz Kryo 585 (Quad-core)
GPU graphical controller	Qualcomm Adreno 618 (610MHz)	Qualcomm Adreno 650 (250-646MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
RAM memory	6GB LPDDR4X	16GB LPDDR5
Internal storage	128GB (109GB available) UFS 2.1	512GB (479GB available) UFS 3.1
External storage	Not supported	Not supported
📶 Mobile networks
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	800/150 Mbps	5000/150 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G, 5G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	CDMA 800 (China), GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	MZB7754IN, MZB7755IN, MZB7756IN version: UMTS 850/900/1900/2100 M1903F10A, M1903F10C, M1903F10T version: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 800/850/900/1700/1900/2100
Primary 4G network	LTE Cat15/13 VoLTE MZB7754IN, MZB7755IN, MZB7756IN version: LTE (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 38, 40, 41) M1903F10A, M1903F10C, M1903F10T version: LTE (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 34, 38, 39, 40, 41)	LTE Cat20 VoLTE A version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 66, 71) TD-LTE (34, 38, 39, 40, 41, 42, 48) B version: LTE (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (34, 38, 39, 40, 41)
Primary 5G network	Not supported	A version: SA/NSA (1, 2, 3, 5, 28, 41, 66, 71, 77, 78, 79) B version: SA/NSA (41, 77, 78, 79)
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Back camera (main camera)	(triple camera) 48 megapixels 8MP telephoto f/2.453mm1/4"1.12µmPDAF2x-optical-zoom 13MP ultrawide f/2.412mm1/3"1.12µm	(triple camera) 64 megapixels 13MP ultrawide f/2.4125°11mm 5MP macro f/2.0
Main camera resolution	8000x6000 pixels	10120x6328 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	8K UHD (7680x4320) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	26mm lens	26mm lens
Sensor size	1/2" inches	1/1.72" inches
Pixel size	0.8µm pixel	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Front camera (secondary)	20 megapixels *Motorized pop-up camera (slider)	24 megapixels
Front camera resolution	5184x3840 pixels	5632x4224 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	27mm lens
Sensor size	feature not registered	feature not registered
Pixel size	0.8µm pixel	0.9µm pixel
🔉 Sound and multimedia
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 3.1 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C jack with 3.5mm jack adapter
TV output	Not supported	USB Type-C (reversible)
Bluetooth	5.0 + A2DP/LE	5.1 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, QZSS
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4000 mAh	6000 mAh
Charger, watts	18W (9V/2A) Wired fast charging	30W Wired fast charging 10W Reverse charging by cable Quick Charge 3/4 USB Power Delivery 3.0
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Carbon black, Flame red, Glacier blue • MIUI 10 • HDR display • 24-bit/192kHz audio • Quick Charge 4+	• Colors: Black glare • ROG UI (Republic Of Gamers) • Always-On display • DTS:X stereo speakers (2 amplifiers) • 24-bit/192kHz audio • AeroActive Cooler 3
☢️ Radiation rate
	Redmi K20 (128GB)	Asus ROG Phone 3 (512GB/16GB)
SAR 1.6W/kg (USA, Mexico, etc.)	1.07W/kg (head), 0.72W/kg (body)	0.74W/kg (head), 1.5W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered