Samsung Galaxy S21 Ultra (SM-G998U1 256GB) vs ZTE Nubia M2 (64GB)

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Side by side comparison between Samsung Galaxy S21 Ultra vs ZTE Nubia M2 phones, differences, pros, cons and full specifications. What's the better?

11/14/2021 5:17 PM, updated: 11/21/2023 5:01 AM

Compare ZTE Nubia M2 X Samsung Galaxy S21 Ultra (SM-G998U1 256GB) 31Points

Specifications Compare Models Pictures

6.8"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

Octa-core

5000
mAh

(Non removable)

05Points ZTE Nubia M2 (64GB) Compare Samsung Galaxy S21 Ultra X

Specifications Compare Models Pictures

5.5"
AMOLED

1080x1920

13
MP

16mp

4GB
RAM

Octa-core

3630
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 Ultra (SM-G998U1 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!

31 Advantages Samsung Galaxy S21 Ultra (SM-G998U1 256GB)	vs	5 Advantages ZTE Nubia M2 (64GB)
+2.84GHz 64bit Octa-core (5nm)29% More powerful processor, you can open your applications faster	vs	2GHz 64bit Octa-core
+12GB LPDDR52 times More RAM memory. Typically more responsive and better for multitasking.	vs	4GB LPDDR3
+256GB (220GB available)3 times More internal storage for applications and files	vs	64GB (54GB available)
+Dynamic AMOLEDAdvantage Dynamic AMOLED display is brighter and more vivid	vs	AMOLED
+1440x3200 pixels122% Higher resolution screen	vs	1080x1920 pixels
+516 PPI29% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	401 PPI
+6.8"24% Larger screen	vs	5.5"
+(quad camera) 108MP + 10MP + 10MP + 12MP4 times Higher resolution main camera	vs	(dual camera) 13MP + 13MP
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+HDR photo/video on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	HDR photo only main camera
+1/1.33" inches118% The larger sensor camera lets you take photos with better depth.	vs	1/2.9" inches
+f/1.8 (aperture)22% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.2 (aperture)
+(front) 40MP151% Higher resolution secondary camera to take pictures and selfies	vs	(front) 16MP
+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 6.0.1 Marshmallow
+5G Sub6Advantage The 5G Sub6 network is newer and faster	vs	4G LTE
+(5G Sub6) 5000 Mbps32 times Faster for surfing the internet and download files	vs	(4G LTE) 150 Mbps
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+UWB (Ultra Wideband)Advantage Sensors help you use the device	vs	Not supported
+5000 mAh38% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3630 mAh
+1 slot (Single-SIM) + e-SIM (Eletronic)Advantage You can have more mobile carriers/operators on the same device.	vs	2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster	vs	802.11 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	4.1 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+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 reversible connector
+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
Not supported	vs	+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards
227 grams (7.95 ounces)	vs	+168 grams (5.88 ounces)35% Lighter
8.9 millimeters (0.35 inches)	vs	+7 millimeters (0.28 inches)27% Thinner
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
Type-C reversible connector	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores

14 Common items in both devices

16 million

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

Capacitive

Multitouch

Accelerometer

Ambient light sensor

Compass

+7 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 S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
Change model		Choose the model
Model	Galaxy S21 Ultra (SM-G998U1 256GB)	Nubia M2 (64GB)
Other model names	Galaxy S21 Ultra 5G (SM-G998U1) Unlocked	ZTE nubia M2 NX551J, ZTE NX551J
Country or region available	USA	(Global, International), China, Hong Kong
Brand	Samsung	ZTE
Release date	1/29/2021, Announced: 1/14/2021	5/1/2017
Depth	8.9 millimeters (0.35 inches)	7 millimeters (0.28 inches)
Size (width x height)	75.6 x 165.1 millimeters (2.98 x 6.5 in)	75.9 x 154.5 millimeters (2.99 x 6.08 in)
Weight	227 grams (7.95 ounces)	168 grams (5.88 ounces)
Build, materials	Aluminum frame, glass front/back	feature not registered
Protection against water and others	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant	Not supported
📲 Display
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
Display type	Dynamic AMOLED	AMOLED
Screen size	6.8" inches	5.5" inches
Screen-to-body ratio	~89.4% (screen-to-body ratio)	~71.1% (screen-to-body ratio)
Display resolution	1440x3200 pixels (20:9)	1080x1920 pixels
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	516 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass Victus	Gorilla Glass
Refresh rate	120Hz	feature not registered
Display features	1500nits[peak] HDR10+ Always-On Display	feature not registered
🤖 Operating System
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
System version	Android 11	Android 6.0.1 Marshmallow
Firmware update	Android 14	feature not registered
User Interface	One UI 3.1 / 4.1 / 5.1 / 6.0	feature not registered
⚙️ Processor
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
Chipset	64bit: Qualcomm Snapdragon 888 (SM8350) (5nm)	64bit: Qualcomm Snapdragon 625 MSM8953 (14nm)
CPU	Octa-core, 3 processors: 1x 2.84GHz Kryo 680 (Single-core) 3x 2.42GHz Kryo 680 (Triple-core) 4x 1.8GHz Kryo 680 (Quad-core)	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core)
GPU graphical controller	Qualcomm Adreno 660 (840MHz)	Qualcomm Adreno 506 650Mhz
Performance (benchmark)	AnTuTu: 681099 (v8), 809165 (v9) Geekbench: 3539 (v5.2) GFXBench: 54fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
RAM memory	12GB LPDDR5	4GB LPDDR3
Internal storage	256GB (220GB available) UFS 3.1	64GB (54GB available)
External storage	Not supported	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
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	1 slot (Single-SIM) nano-SIM (4FF) + e-SIM	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	5000/1920 Mbps	150/50 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	CDMA 800/1900, GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100	TD-SCDMA 1900/2000 UMTS 850/900/1900/2100
Primary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE	LTE Cat4 800/850/900/1800/2100/2600 (Bands 1,3,5,7,8,20) TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)
Primary 5G network	SA/NSA/Sub6 (2, 5, 25, 41, 66, 71) mmWave (260, 261)	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, 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
Secondary 2G network	CDMA 800/1900, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100	Not supported
Secondary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE	Not supported
Secondary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	GPRS, EDGE
📷 Camera
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
Back camera (main camera)	(quad camera) 108 megapixels 10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom 10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video	(dual camera) 13 megapixels 13MP monochrome
Main camera resolution	12000x9000 pixels	4128x3096 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/2.2 (aperture)
Focal length	26mm lens	feature not registered
Sensor size	1/1.33" inches	1/2.9" inches
Pixel size	1.8µm pixel	1.25µm pixel
Autofocus	PDAF: phase detection autofocus on both cameras	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical 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	Supported	Not supported
HDR	HDR photo/video on both cameras	HDR photo only main camera
Camera extras	4K@60fps 1080p@240fps 720p@960fps	feature not registered
📸 Front camera
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
Front camera (secondary)	40 megapixels	16 megapixels
Front camera resolution	7296x5472 pixels	4608x3456 pixels
Video recording (secondary)	4K UHD (3840x2160)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	26mm lens	feature not registered
Sensor size	1/2.8" inches	feature not registered
Pixel size	0.7µm pixel	feature not registered
🔉 Sound and multimedia
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (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	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, eAAC+, FLAC
🔌 Connectivity
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
USB	USB 3.2 Type-C, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	Type-C reversible connector	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.2 + A2DP/LE	4.1 + A2DP
WiFi	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 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, BeiDou
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband)	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	5000 mAh	3630 mAh
Charger, watts	25W Wired fast charging USB Power Delivery 3.0	Wired charging
Inductive / wireless charging	15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging	feature not registered
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice recorder
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, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support	• Colors: Black/gold, White/champagne gold • USB OTG On-The-Go • Aluminum body • nubia UI 4.0 • Fast battery charging
☢️ Radiation rate
	Galaxy S21 Ultra (SM-G998U1 256GB)	ZTE Nubia M2 (64GB)
SAR 1.6W/kg (USA, Mexico, etc.)	0.77W/kg (head), 1.02W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered