Xiaomi Mi 8 (64GB) vs Samsung Galaxy S20 Ultra (SM-G988B/DS)

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Side by side comparison between Xiaomi Mi 8 vs Samsung Galaxy S20 Ultra phones, differences, pros, cons and full specifications. What's the better?

1/25/2020 10:38 AM, updated: 11/21/2022 8:09 AM

Compare Samsung Galaxy S20 Ultra X Xiaomi Mi 8 (64GB) 04Points

Specifications Compare Models Pictures

6.21"
AMOLED

1080x2248

12
MP

20mp

6GB
RAM

Octa-core

3400
mAh

(Non removable)

24Points Samsung Galaxy S20 Ultra (SM-G988B/DS) Compare Xiaomi Mi 8 X

Specifications Compare Models Pictures

6.9"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S20 Ultra (SM-G988B/DS)

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!

4 Advantages Xiaomi Mi 8 (64GB)	vs	24 Advantages Samsung Galaxy S20 Ultra (SM-G988B/DS)
+2.8GHz 64bit Octa-core3% More powerful processor, you can open your applications faster	vs	2.73GHz 64bit Octa-core (7nm)
+175 grams (6.13 ounces)26% Lighter	vs	220 grams (7.7 ounces)
+7.6 millimeters (0.3 inches)16% Thinner	vs	8.8 millimeters (0.35 inches)
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
6GB LPDDR4X	vs	+12GB LPDDR5100% More RAM memory. Typically more responsive and better for multitasking.
64GB (51GB available)	vs	+128GB (104GB available)104% More internal storage for applications and files
UFS 2.1	vs	+UFS 3.0Advantage Fastest write and read storage.
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
HDR10	vs	+HDR10+Advantage The HDR10+ display provides vibrant colors and more details
60Hz	vs	+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
1080x2248 pixels	vs	+1440x3200 pixels90% Higher resolution screen
402 PPI	vs	+509 PPI27% Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.21"	vs	+6.9"11% Larger screen
(dual camera) 12MP + 12MP	vs	+(quad camera) 108MP + 48MP + 12MP + 0.3MP6 times Higher resolution main camera
1/2.55" inches	vs	+1/1.33" inches92% The larger sensor camera lets you take photos with better depth.
(front) 20MP	vs	+(front) 40MP101% 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
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 9.0 Pie	vs	+Android 13Advantage Android 13 is newer and safer
(4G LTE-A) 1024 Mbps	vs	+(4G LTE-A) 2000 Mbps95% Faster for surfing the internet and download files
Not supported	vs	+ANT+Advantage Sensors help you use the device
3400 mAh	vs	+5000 mAh47% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
18W	vs	+45W150% 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.
Not supported	vs	+Qi wireless charging (Qi/PMA)Advantage Wireless charging is another way to charge the battery.
2 slots (Dual-SIM)	vs	+2 slots (Dual-SIM) + e-SIM (Eletronic) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.
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
USB 2.0 Type-C, USB OTG On-The-Go	vs	+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.
Not supported	vs	+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

27 Common items in both devices

Aluminum frame, glass front/back

Super AMOLED / Dynamic AMOLED

16 million

Digital and optical zoom

PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras

OIS (4-axis): Optical stabilization / OIS: Optical stabilization

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

+20 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
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Change model		Choose the model
Model	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Other model names	小米8, Xiaomi Mi8 6GB RAM, Xiaomi Dipper	Galaxy S20 Ultra 4G-LTE SM-G988B/Dual-Sim (Exynos, 12GB RAM)
Country or region available	(Global, International), China, Hong Kong	(Global, International)
Brand	Xiaomi	Samsung
Release date	6/1/2018	3/15/2020, Announced: 2/11/2020
Depth	7.6 millimeters (0.3 inches)	8.8 millimeters (0.35 inches)
Size (width x height)	74.8 x 154.9 millimeters (2.94 x 6.1 in)	76 x 166.9 millimeters (2.99 x 6.57 in)
Weight	175 grams (6.13 ounces)	220 grams (7.7 ounces)
Build, materials	Aluminum frame, glass front/back	Aluminum frame, glass front/back
Protection against water and others	Not supported	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Display type	Super AMOLED	Dynamic AMOLED
Screen size	6.21" inches	6.9" inches
Screen-to-body ratio	~83.8% (screen-to-body ratio)	~90.6% (screen-to-body ratio)
Display resolution	1080x2248 pixels	1440x3200 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	402 PPI	509 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass 6
Refresh rate	60Hz	120Hz
Display features	600nits[typ] HDR10	HDR10+ Always-On Display 120Hz@FHD 60Hz@QHD
🤖 Operating System
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
System version	Android 8.1 Oreo	Android 10
Firmware update	Android 9.0 Pie	Android 13
User Interface	feature not registered	One UI 2.5 / 3.1 / 4.1 / 5.0
⚙️ Processor
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Chipset	64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)	64bit: Samsung Exynos 990 (7nm)
CPU	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.8GHz Kryo 385 Silver (Quad-core)	Octa-core, 3 processors: 2x 2.73GHz Mongoose M5 (Dual-core) 2x 2.5GHz ARM Cortex-A76 (Dual-core) 4x 2GHz ARM Cortex-A55 (Quad-core)
GPU graphical controller	Qualcomm Adreno 630 710Mhz	ARM Mali-G77 MP11 (800MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
RAM memory	6GB LPDDR4X	12GB LPDDR5
Internal storage	64GB (51GB available) UFS 2.1	128GB (104GB available) UFS 3.0
External storage	Not supported	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM
Maximum Download / Upload	1024/150 Mbps	2000/316 Mbps
Network technology	2G, 3G, 4G	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	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41) VoLTE	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE
Primary 5G network	Not supported	Not supported
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, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Back camera (main camera)	(dual camera) 12 megapixels 12MP telephoto f/2.456mm1/3.4"1.0µmAF2x-optical-zoom	(quad camera) 108 megapixels 48MP periscope telephoto f/3.5103mm1/2.0"0.8µmPDAFOIS4x-optical-zoom10x-hybrid-zoom 12MP ultrawide f/2.213mm1.4µmSuper-Steady-video 0.3MP TOF 3D f/1.0
Main camera resolution	4000x3000 pixels	12000x9000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	8K UHD (7680x4320) 24 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	1/2.55" inches	1/1.33" inches
Pixel size	1.4µm pixel	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus on both cameras
Touch focus	Supported	Supported
Image stabilization	OIS (4-axis): Optical stabilization	OIS: Optical stabilization
Zoom	Digital and optical zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo on both cameras	HDR photo/video on both cameras
Camera extras	feature not registered	4K@60fps 1080p@240fps 720p@960fps
📸 Front camera
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Front camera (secondary)	20 megapixels	40 megapixels
Front camera resolution	5184x3840 pixels	7296x5472 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	1/3" inches	feature not registered
Pixel size	1.8µm pixel	0.7µm pixel
🔉 Sound and multimedia
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Loudspeaker	Supported	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 3.2 Type-C, USB OTG On-The-Go
Audio output	Type-C jack with 3.5mm jack adapter	Type-C reversible connector
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.0 + A2DP/LE	5.0 + 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	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor ANT+ Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3400 mAh	5000 mAh
Charger, watts	18W Wired fast charging Quick Charge 4+	45W Wired fast charging USB Power Delivery 3.0
Inductive / wireless charging	Not supported	15W Qi wireless charging (Qi/PMA) 9W Reverse wireless charging
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
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: Black, Blue, White, Gold • MIUI 9.5 • Always-On Display • WiFi display	• Colors: Cosmic Black, Cosmic Grey, Cloud White • Ultrasonic fingerprint sensor • Bixby • Samsung DeX • Samsung Pay (MST, NFC)
☢️ Radiation rate
	Xiaomi Mi 8 (64GB)	Galaxy S20 Ultra (SM-G988B/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.74W/kg (head), 1.12W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.319W/kg (head), 1.557W/kg (body)