HTC One E8 (Dual-Sim) vs Samsung Galaxy S21 Ultra (SM-G998N 512GB)

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Side by side comparison between HTC One E8 vs Samsung Galaxy S21 Ultra phones, differences, pros, cons and full specifications. What's the better?

11/19/2021 2:06 AM, updated: 5/19/2025 11:26 AM

Compare Samsung Galaxy S21 Ultra X HTC One E8 (Dual-Sim) 04Points

Specifications Compare Models Pictures

5"
SLCD3

1080x1920

13
MP

5mp

2GB
RAM

Quad-core

2600
mAh

(Non removable)

29Points Samsung Galaxy S21 Ultra (SM-G998N 512GB) Compare HTC One E8 X

Specifications Compare Models Pictures

6.8"
AMOLED

1440x3200

108
MP

40mp

16GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 Ultra (SM-G998N 512GB)

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 HTC One E8 (Dual-Sim)	vs	29 Advantages Samsung Galaxy S21 Ultra (SM-G998N 512GB)
+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+145 grams (5.08 ounces)57% Lighter	vs	227 grams (7.95 ounces)
+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM)
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C reversible connector
2.3GHz 32bit Quad-core	vs	+2.9GHz 64bit Octa-core (5nm)61% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+16GB LPDDR57 times More RAM memory. Typically more responsive and better for multitasking.
16GB (11GB available)	vs	+512GB (457GB available)41 times More internal storage for applications and files
9.9 millimeters (0.39 inches)	vs	+8.9 millimeters (0.35 inches)11% Thinner
TFT Super LCD 3	vs	+Dynamic AMOLEDAdvantage Dynamic AMOLED display is brighter and more vivid
1080x1920 pixels	vs	+1440x3200 pixels122% Higher resolution screen
441 PPI	vs	+516 PPI17% Crisper display of text, images and videos because it has more pixels per inch (ppi)
5"	vs	+6.8"36% Larger screen
(back) 13MP	vs	+(quad camera) 108MP + 10MP + 10MP + 12MP10 times Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
EIS: Digital stabilization	vs	+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
HDR photo/video only main camera	vs	+HDR photo/video on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
f/2.2 (aperture)	vs	+f/1.8 (aperture)22% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MP	vs	+(front) 40MP7 times Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+8K UHD (7680x4320)15 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 6.0.1 Marshmallow	vs	+Android 15Advantage Android 15 is newer and safer
4G LTE	vs	+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster
(4G LTE) 150 Mbps	vs	+(5G SA/NSA) 5000 Mbps32 times Faster for surfing the internet and download files
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (under display)Advantage Sensors help you use the device
Not supported	vs	+UWB (Ultra Wideband)Advantage Sensors help you use the device
2600 mAh	vs	+5000 mAh92% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general
802.11 a/b/g/n [wifi4]	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
4.0 + A2DP	vs	+5.2 + A2DP/LEAdvantage Bluetooth 5.2 + A2DP/LE is newer and faster
MicroUSB 2.0	vs	+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supported	vs	+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

22 Common items in both devices

16 million

LED flash

Autofocus / PDAF: phase detection autofocus on both cameras

BSI sensor

Capacitive

Multitouch

Accelerometer

+15 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
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Change model		Choose the model
Model	One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Other model names	HTC One Ace Dual-Sim, HTC One E8 Ace LTE	갤럭시 S21 Ultra 5G (SM-G998N Single-SIM)
Country or region available	(Global, International), China, Hong Kong, India	South Korea
Brand	HTC	Samsung
Release date	6/3/2014	1/29/2021, Announced: 1/14/2021
Depth	9.9 millimeters (0.39 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	70.7 x 146.4 millimeters (2.78 x 5.76 in)	75.6 x 165.1 millimeters (2.98 x 6.5 in)
Weight	145 grams (5.08 ounces)	227 grams (7.95 ounces)
Build, materials	feature not registered	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
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Display type	TFT Super LCD 3	Dynamic AMOLED
Screen size	5" inches	6.8" inches
Screen-to-body ratio	~66.6% (screen-to-body ratio)	~89.4% (screen-to-body ratio)
Display resolution	1080x1920 pixels	1440x3200 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	441 PPI	516 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass Victus
Refresh rate	feature not registered	120Hz
Display features	feature not registered	1500nits[peak] HDR10+ Always-On Display
🤖 Operating System
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
System version	Android 4.4.2 KitKat	Android 11
Firmware update	Android 6.0.1 Marshmallow	Android 15
User Interface	feature not registered	One UI 3.1 / 4.1 / 5.1 / 6.0 / 7.0
⚙️ Processor
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Chipset	32bit: Qualcomm Snapdragon 801 MSM8974-AB (28nm)	64bit: Samsung Exynos 2100 (5nm)
CPU	Quad-core, 1 processor: 4x 2.3GHz Krait 400 (Quad-core)	Octa-core, 3 processors: 1x 2.9GHz ARM Cortex-X1 (Single-core) 3x 2.8GHz ARM Cortex-A78 (Triple-core) 4x 2.2GHz ARM Cortex-A55 (Quad-core)
GPU graphical controller	Qualcomm Adreno 330 578Mhz	ARM Mali-G78 MP14 (854MHz)
Performance (benchmark)	feature not registered	AnTuTu: 657150 (v8), 727634 (v9) Geekbench: 3457 (v5.2) GFXBench: 51fps (ES 3.1 onscreen)
💽 Memory and storage
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
RAM memory	2GB LPDDR3	16GB LPDDR5
Internal storage	16GB (11GB available)	512GB (457GB available) UFS 3.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Not supported
📶 Mobile networks
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	5000/1920 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	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	Global version: UMTS 850/900/1900/2100 India version: UMTS 850/1900/2100 Hong Kong version: TD-SCDMA 1900/2000 UMTS 850/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 Global version: LTE (Bands 1,3,7,8,28) India version: LTE (Bands 1,3) TD-LTE (Bands 41) Hong Kong version: LTE (Bands 3,7) TD-LTE (Bands 38,39,40,41)	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE
Primary 5G network	Not supported	SA/NSA/Sub6 (77, 78)
Primary data network	GPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G network	GSM 850/900/1800/1900	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	Not supported
📷 Camera
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Back camera (main camera)	13 megapixels	(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
Main camera resolution	4128x3096 pixels	12000x9000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	8K UHD (7680x4320) 24 fps
Flash	LED flash	LED flash
Focal aperture	f/2.2 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/1.33" inches
Pixel size	feature not registered	1.8µm pixel
Autofocus	Autofocus	PDAF: phase detection autofocus on both cameras
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS: Optical stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Supported
HDR	HDR photo/video only main camera	HDR photo/video on both cameras
Camera extras	feature not registered	4K@60fps 1080p@240fps 720p@960fps
📸 Front camera
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Front camera (secondary)	5 megapixels	40 megapixels
Front camera resolution	2592x1944 pixels	7296x5472 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	f/2.2 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	0.7µm pixel
🔉 Sound and multimedia
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Loudspeaker	Supported	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG
Active noise cancellation	2 microphones or more	3 microphones
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, WMV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
USB	MicroUSB 2.0	USB 3.2 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C reversible connector
TV output	Not supported	USB Type-C (reversible)
Bluetooth	4.0 + A2DP	5.2 + A2DP/LE
WiFi	802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) 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	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Gyroscope Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband)
Vibrating alert	Supported	Supported
🔋 Battery
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	2600 mAh	5000 mAh
Charger, watts	Wired charging	25W Wired fast charging USB Power Delivery 3.0
Inductive / wireless charging	feature not registered	15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging
Talk time autonomy	26 hours (1.1 days)	feature not registered
Standby	500 hours (20.8 days)	feature not registered
➕ Other features
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
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, White, Red • USB OTG On-The-Go 1.3 • HTC Sense 6.0 UI • HTC BlinkFeed • HTC BoomSound • Google Drive 50GB • HAC M4/T3 • Java framework	• Colors: Phantom Black, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support
☢️ Radiation rate
	HTC One E8 (Dual-Sim)	Galaxy S21 Ultra (SM-G998N 512GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.489W/kg (head), 1.1W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered