Samsung Galaxy S21 Ultra (SM-G998U1 256GB) vs Honor 400 (DNN-AN00 512GB/16GB)

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Side by side comparison between Samsung Galaxy S21 Ultra vs Honor 400 phones, differences, pros, cons and full specifications. What's the better?

6/5/2025 3:56 PM, updated: 6/6/2025 2:50 AM

Compare Honor 400 X Samsung Galaxy S21 Ultra (SM-G998U1 256GB) 20Points

Specifications Compare Models Pictures

6.8"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

Octa-core

5000
mAh

(Non removable)

11Points Honor 400 (DNN-AN00 512GB/16GB) Compare Samsung Galaxy S21 Ultra X

Specifications Compare Models Pictures

6.55"
AMOLED

1264x2736

200
MP

50mp

16GB
RAM

Octa-core

7200
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!

20 Advantages Samsung Galaxy S21 Ultra (SM-G998U1 256GB)	vs	11 Advantages Honor 400 (DNN-AN00 512GB/16GB)
+UFS 3.1Advantage Fastest write and read storage.	vs	UFS 2.2
+Dynamic AMOLEDAdvantage Dynamic AMOLED display is brighter and more vivid	vs	AMOLED
+HDR10+Advantage The HDR10+ display provides vibrant colors and more details	vs	HDR8
+1440x3200 pixels33% Higher resolution screen	vs	1264x2736 pixels
+516 PPI12% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	460 PPI
+6.8"4% Larger screen	vs	6.55"
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+1/1.33" inches5% The larger sensor camera lets you take photos with better depth.	vs	1/1.4" inches
+f/1.8 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/1.9 (aperture)
+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera	vs	4K UHD (3840x2160)
+(5G Sub6) 5000 Mbps150% Faster for surfing the internet and download files	vs	(5G SA/NSA) 2000 Mbps
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+UWB (Ultra Wideband)Advantage Sensors help you use the device	vs	Not supported
+Qi wireless charging (Qi/PMA)Advantage Wireless charging is another way to charge the battery.	vs	Not supported
+1 slot (Single-SIM) + e-SIM (Eletronic)Advantage You can have more mobile carriers/operators on the same device.	vs	2 slots (Dual-SIM)
+3 microphones50% More noise-canceling microphones allow for better quality in calls and audio for recorded videos	vs	2 microphones
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	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, USB OTG On-The-Go
2.84GHz 64bit Octa-core (5nm)	vs	+2.8GHz 64bit Octa-core (4nm)9% More powerful processor, you can open your applications faster
12GB LPDDR5	vs	+16GB LPDDR533% More RAM memory. Typically more responsive and better for multitasking.
256GB (220GB available)	vs	+512GB (458GB available)108% More internal storage for applications and files
227 grams (7.95 ounces)	vs	+196 grams (6.86 ounces)16% Lighter
8.9 millimeters (0.35 inches)	vs	+7.8 millimeters (0.31 inches)14% Thinner
16 million	vs	+1 billion62 times More colors on the screen is better quality images and videos
(quad camera) 108MP + 10MP + 10MP + 12MP	vs	+(dual camera) 200MP + 12MP51% Higher resolution main camera
(front) 40MP	vs	+(front) 50MP25% Higher resolution secondary camera to take pictures and selfies
5000 mAh	vs	+7200 mAh44% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
25W	vs	+80W2 times 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.
5.2 + A2DP/LE	vs	+5.4 + A2DP/LEAdvantage Bluetooth 5.4 + A2DP/LE is newer and faster

30 Common items in both devices

Aluminum frame, glass front/back / Aluminum body, glass front

120Hz

LED flash

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

OIS: Optical stabilization

BSI sensor

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

+23 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)	Honor 400 (DNN-AN00 512GB/16GB)
Change model		Choose the model
Model	Galaxy S21 Ultra (SM-G998U1 256GB)	400 (DNN-AN00 512GB/16GB)
Other model names	Galaxy S21 Ultra 5G (SM-G998U1) Unlocked	华为荣耀400 DNN-AN00
Country or region available	USA	China
Brand	Samsung	Honor
Release date	1/29/2021, Announced: 1/14/2021	6/6/2025, Announced: 6/2/2025
Depth	8.9 millimeters (0.35 inches)	7.8 millimeters (0.31 inches)
Size (width x height)	75.6 x 165.1 millimeters (2.98 x 6.5 in)	74.7 x 156.3 millimeters (2.94 x 6.15 in)
Weight	227 grams (7.95 ounces)	196 grams (6.86 ounces)
Build, materials	Aluminum frame, glass front/back	Aluminum body, glass front
Protection against water and others	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
Display type	Dynamic AMOLED	AMOLED
Screen size	6.8" inches	6.55" inches
Screen-to-body ratio	~89.4% (screen-to-body ratio)	~90.3% (screen-to-body ratio)
Display resolution	1440x3200 pixels (20:9)	1264x2736 pixels (19.5:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch 10-points
Pixel density (dot pitch)	516 PPI	460 PPI
Colors	16 million	1 billion
Scratch-resistant glass	Gorilla Glass Victus	Aluminosilicate
Refresh rate	120Hz	120Hz
Display features	1500nits[peak] HDR10+ Always-On Display	5000nits[peak] HDR8
🤖 Operating System
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
System version	Android 11	Android 15
Firmware update	Android 15	feature not registered
User Interface	One UI 3.1 / 4.1 / 5.1 / 6.0 / 7.0	MagicOS 9
⚙️ Processor
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
Chipset	64bit: Qualcomm Snapdragon 888 (SM8350) (5nm)	64bit: Qualcomm Snapdragon 7 Gen 4 (SM7750-AB) (4nm)
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, 3 processors: 1x 2.8GHz ARM Cortex-720 (Single-core) 4x 2.4GHz ARM Cortex-720 (Quad-core) 3x 1.8GHz ARM Cortex-A520 (Triple-core)
GPU graphical controller	Qualcomm Adreno 660 (840MHz)	Qualcomm Adreno 722
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)	Honor 400 (DNN-AN00 512GB/16GB)
RAM memory	12GB LPDDR5	16GB LPDDR5
Internal storage	256GB (220GB available) UFS 3.1	512GB (458GB available) UFS 2.2
External storage	Not supported	Not supported
📶 Mobile networks
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
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	5000/1920 Mbps	2000/1024 Mbps
Network technology	2G, 3G, 4G, 5G	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 800/1900, GSM 850/900/1800/1900	CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100	CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100
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 Cat20 (1, 2, 3, 4, 5, 8, 19, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE
Primary 5G network	SA/NSA/Sub6 (2, 5, 25, 41, 66, 71) mmWave (260, 261)	SA/NSA (1, 5, 8, 28, 41, 77, 78)
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, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G network	CDMA 800/1900, GSM 850/900/1800/1900	CDMA 800/1900, GSM 850/900/1800/1900
Secondary 3G network	CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100	CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100
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	LTE Cat20 (1, 2, 3, 4, 5, 8, 19, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE
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, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
📷 Camera
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
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) 200 megapixels 12MP ultrawide f/2.2112°AF
Main camera resolution	12000x9000 pixels	20000x10000 pixels
Video recording (primary)	8K UHD (7680x4320) 24 fps	4K UHD (3840x2160) 60 fps
Flash	LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.9 (aperture)
Focal length	26mm (lens)	feature not registered
Sensor size	1/1.33" inches	1/1.4" inches
Pixel size	1.8µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus on both cameras	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS: Optical stabilization
Zoom	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Supported
HDR	HDR photo/video on both cameras	HDR photo on both cameras
Camera extras	4K@60fps 1080p@240fps 720p@960fps	feature not registered
📸 Front camera
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
Front camera (secondary)	40 megapixels	50 megapixels
Front camera resolution	7296x5472 pixels	8160x6120 pixels
Video recording (secondary)	4K UHD (3840x2160)	4K UHD (3840x2160)
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)	Honor 400 (DNN-AN00 512GB/16GB)
Loudspeaker	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG	Stereo sound
Active noise cancellation	3 microphones	2 microphones
Radio	FM	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
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
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	Type-C reversible connector
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.2 + A2DP/LE	5.4 + A2DP/LE
WiFi	802.11 a/b/g/n/ac/ax [wifi6] (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	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC
NFC	Supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband)	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Si: lithium-silicon (Non removable)
Battery capacity	5000 mAh	7200 mAh
Charger, watts	25W Wired fast charging USB Power Delivery 3.0	80W Wired fast charging 5W Reverse charging by cable
Inductive / wireless charging	15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 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: Phantom Black, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support	• Colors: Black, Silver, Blue, Pink
☢️ Radiation rate
	Galaxy S21 Ultra (SM-G998U1 256GB)	Honor 400 (DNN-AN00 512GB/16GB)
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

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Samsung Galaxy S21 Ultra (SM-G998U1 256GB) vs Honor 400 (DNN-AN00 512GB/16GB)

Side by side comparison between Samsung Galaxy S21 Ultra vs Honor 400 phones, differences, pros, cons and full specifications. What's the better?

What's the better phone? Samsung Galaxy S21 Ultra (SM-G998U1 256GB)

📱 Model features

📲 Display

🤖 Operating System

⚙️ Processor

💽 Memory and storage

📶 Mobile networks

📷 Camera

📸 Front camera

🔉 Sound and multimedia

🔌 Connectivity

🧭 Sensors

🔋 Battery

➕ Other features

☢️ Radiation rate