Samsung Galaxy Z Fold 4 (SM-F936W 256GB) vs Xiaomi Redmi K20 (64GB)

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Side by side comparison between Samsung Galaxy Z Fold 4 vs Xiaomi Redmi K20 phones, differences, pros, cons and full specifications. What's the better?

1/23/2023 11:16 AM, updated: 11/21/2023 4:36 AM

Compare Xiaomi Redmi K20 X Samsung Galaxy Z Fold 4 (SM-F936W 256GB) 27Points

Specifications Compare Models Pictures

7.6"
AMOLED

1812x2176

50
MP

10mp

12GB
RAM

Octa-core

4400
mAh

(Non removable)

07Points Xiaomi Redmi K20 (64GB) Compare Samsung Galaxy Z Fold 4 X

Specifications Compare Models Pictures

6.39"
AMOLED

1080x2340

48
MP

20mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy Z Fold 4 (SM-F936W 256GB)

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!

27 Advantages Samsung Galaxy Z Fold 4 (SM-F936W 256GB)	vs	7 Advantages Xiaomi Redmi K20 (64GB)
+3.19GHz 64bit Octa-core (4nm)41% More powerful processor, you can open your applications faster	vs	2.2GHz 64bit Octa-core (8nm)
+12GB LPDDR5100% More RAM memory. Typically more responsive and better for multitasking.	vs	6GB LPDDR4X
+256GB (216GB available)3 times More internal storage for applications and files	vs	64GB (49GB available)
+UFS 3.1Advantage Fastest write and read storage.	vs	UFS 2.1
+6.3 millimeters (0.25 inches)40% Thinner	vs	8.8 millimeters (0.35 inches)
+Dynamic AMOLEDAdvantage Dynamic AMOLED display is brighter and more vivid	vs	AMOLED
+HDR10+Advantage The HDR10+ display provides vibrant colors and more details	vs	HDR10
+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.	vs	60Hz
+1812x2176 pixels56% Higher resolution screen	vs	1080x2340 pixels
+7.6"19% Larger screen	vs	6.39"
+(triple camera) 50MP + 10MP + 12MP4% Higher resolution main camera	vs	(triple camera) 48MP + 8MP + 13MP
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera	vs	4K UHD (3840x2160)
+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera	vs	(front) Full HD (1920x1080)
+Android 14Advantage Android 14 is newer and safer	vs	Android 10
+5G Sub6Advantage The 5G Sub6 network is newer and faster	vs	4G LTE-A
+(5G Sub6) 3000 Mbps3 times Faster for surfing the internet and download files	vs	(4G LTE-A) 800 Mbps
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+UWB (Ultra Wideband)Advantage Sensors help you use the device	vs	Not supported
+4400 mAh10% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	4000 mAh
+25W39% 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.	vs	18W
+1 slot (Single-SIM) + e-SIM (Eletronic)Advantage You can have more mobile carriers/operators on the same device.	vs	2 slots (Dual-SIM)
+802.11 a/b/g/n/ac/ax [wifi6E/6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6E/6] is newer and faster	vs	802.11 a/b/g/n/ac [wifi5]
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	vs	Not supported
+5.2 + A2DP/LEAdvantage Bluetooth 5.2 + A2DP/LE is newer and faster	vs	5.0 + A2DP/LE
+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.	vs	USB 2.0 Type-C, USB OTG On-The-Go
+IPX8 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
263 grams (9.21 ounces)	vs	+191 grams (6.69 ounces)38% Lighter
373 PPI	vs	+403 PPI8% Crisper display of text, images and videos because it has more pixels per inch (ppi)
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
(front) 10MP	vs	+(front) 20MP98% Higher resolution secondary camera to take pictures and selfies
Type-C reversible connector	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general
Not supported	vs	+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys

19 Common items in both devices

Aluminum frame, flexible plastic screen, glass back / Aluminum frame, glass front/back

16 million

Digital and optical zoom

PDAF: phase detection autofocus

HDR photo/video on both cameras / HDR photo on both cameras

f/1.8 (aperture)

Capacitive

+12 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
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Change model		Choose the model
Model	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Other model names	Galaxy Fold4 5G (SM-F936W)	Xiaomi Redmi K20 M1903F10A, M1903F10C, MZB7754IN, MZB7755IN
Country or region available	Canada	China, India
Brand	Samsung	Xiaomi
Release date	8/25/2022, Announced: 8/10/2022	6/1/2019
Depth	6.3 millimeters (0.25 inches)	8.8 millimeters (0.35 inches)
Size (width x height)	130.1 x 155.1 millimeters (5.12 x 6.11 in)	74.3 x 156.7 millimeters (2.93 x 6.17 in)
Weight	263 grams (9.21 ounces)	191 grams (6.69 ounces)
Build, materials	Aluminum frame, flexible plastic screen, glass back Back: Gorilla Glass Victus+	Aluminum frame, glass front/back
Protection against water and others	IPX8 certified: water resistant up to 1.5 meters and 30min	Not supported
📲 Display
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Display type	Dynamic AMOLED	AMOLED
Screen size	7.6" inches	6.39" inches
Screen-to-body ratio	~90.8% (screen-to-body ratio)	~86.1% (screen-to-body ratio)
Display resolution	1812x2176 pixels	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	373 PPI	403 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 5
Refresh rate	120Hz	60Hz
Display features	1200nits[peak] HDR10+ Always-On Display Extra display: Dynamic AMOLED 2X 6.2" (904x2316), 120Hz, Gorilla Glass Victus+	600nits[typ] HDR10
🤖 Operating System
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
System version	Android 12	Android 9.0 Pie
Firmware update	Android 14	Android 10
User Interface	One UI 4.1 / 5.1 / 6.0	feature not registered
⚙️ Processor
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Chipset	64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm)	64bit: Qualcomm Snapdragon 730 (SM7150-AA) (8nm)
CPU	Octa-core, 3 processors: 1x 3.19GHz ARM Cortex-X2 (Single-core) 3x 2.75GHz ARM Cortex-A710 (Triple-core) 4x 2GHz ARM Cortex-A510 (Quad-core)	Octa-core, 2 processors: 2x 2.2GHz Kryo 470 Gold (Dual-core) 6x 1.8GHz Kryo 470 Silver (Hexa-core)
GPU graphical controller	Qualcomm Adreno 730 (818MHz)	Qualcomm Adreno 618 (610MHz)
Performance (benchmark)	AnTuTu: 964622 (v9) Geekbench: 3981 (v5.1) GFXBench: 43fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
RAM memory	12GB LPDDR5	6GB LPDDR4X
Internal storage	256GB (216GB available) UFS 3.1	64GB (49GB available) UFS 2.1
External storage	Not supported	Not supported
📶 Mobile networks
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card
SIM card	1 slot (Single-SIM) nano-SIM (4FF) + e-SIM	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	3000/1024 Mbps	800/150 Mbps
Network technology	2G, 3G, 4G, 5G	2G, 3G, 4G
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	GSM 850/900/1800/1900	CDMA 800 (China), GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	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
Primary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46) VoLTE	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)
Primary 5G network	SA/NSA/Sub6 (2, 5, 38, 41, 66, 71, 78)	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	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
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1700/1900/2100	Not supported
Secondary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	GPRS, EDGE
📷 Camera
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Back camera (main camera)	(triple camera) 50 megapixels 10MP telephoto f/2.466mm1.0µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.2123°12mm1.12µm	(triple camera) 48 megapixels 8MP telephoto f/2.453mm1/4"1.12µmPDAF2x-optical-zoom 13MP ultrawide f/2.412mm1/3"1.12µm
Main camera resolution	8160x6120 pixels	8000x6000 pixels
Video recording (primary)	8K UHD (7680x4320) 24 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	23mm lens	26mm lens
Sensor size	feature not registered	1/2" inches
Pixel size	1µm pixel	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	EIS: Digital stabilization
Zoom	Digital and optical zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Not supported
HDR	HDR photo/video on both cameras	HDR photo on both cameras
Camera extras	8K@24fps 4K@30/60fps 1080p@30/60fps 1080p@240fps (slow motion) 720p@960fps (slow motion) Extra cover camera: 4MP (f/1.8 2.0µm)	feature not registered
📸 Front camera
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Front camera (secondary)	10 megapixels	20 megapixels *Motorized pop-up camera (slider)
Front camera resolution	3872x2592 pixels	5184x3840 pixels
Video recording (secondary)	4K UHD (3840x2160)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.2 (aperture)
Focal length	24mm lens	feature not registered
Sensor size	1/3" inches	feature not registered
Pixel size	1.22µm pixel	0.8µm pixel
🔉 Sound and multimedia
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Loudspeaker	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, XviD
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
USB	USB 3.2 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	Type-C reversible connector	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.2 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband)	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4400 mAh	4000 mAh
Charger, watts	25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0	18W (9V/2A) Wired fast charging
Inductive / wireless charging	15W Qi Wireless charging (Qi/WPC) 4.5W Reverse wireless charging	feature not registered
Talk time autonomy	39 hours (1.6 days)	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
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: Phantom Black, Graygreen, Beige, Burgundy • Samsung DeX • Samsung Pay • S Pen (Stylus Pen)	• Colors: Carbon black, Flame red, Glacier blue • MIUI 10 • HDR display • 24-bit/192kHz audio • Quick Charge 4+
☢️ Radiation rate
	Galaxy Z Fold 4 (SM-F936W 256GB)	Redmi K20 (64GB)
SAR 1.6W/kg (USA, Mexico, etc.)	0.79W/kg (head), 1.11W/kg (body)	1.07W/kg (head), 0.72W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered