Samsung Galaxy S21 Ultra (SM-G998U1 256GB) vs HTC Desire 820 (4G LTE)
Side by side comparison between Samsung Galaxy S21 Ultra vs HTC Desire 820 phones, differences, pros, cons and full specifications. What's the better?
,
6.8"
AMOLED
AMOLED
1440x3200
108
MP
MP
40mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
5.5"
SLCD3
SLCD3
720x1280
13
MP
MP
8mp
2GB
RAM
RAM
Octa-core
2600
mAh
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!
13 Common items in both devices |
16 million |
LED flash |
PDAF: phase detection autofocus on both cameras / Autofocus |
Capacitive |
Multitouch |
Accelerometer |
Ambient light sensor |
+6 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 Clear highlight📱 Model features | ||
Galaxy S21 Ultra (SM-G998U1 256GB) | HTC Desire 820 (4G LTE) | |
Model | Galaxy S21 Ultra (SM-G998U1 256GB) | Desire 820 (4G LTE) |
Other model names | Galaxy S21 Ultra 5G (SM-G998U1) Unlocked | HTC Desire 820 LTE-A, HTC A50 |
Country or region available | USA | feature not registered |
Brand | Samsung | HTC |
Release date | 1/29/2021, Announced: 1/14/2021 | 10/1/2014 |
Depth | 8.9 millimeters (0.35 inches) | 7.7 millimeters (0.3 inches) |
Size (width x height) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) | 78.7 x 157.7 millimeters (3.1 x 6.21 in) |
Weight | 227 grams (7.95 ounces) | 155 grams (5.43 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) | HTC Desire 820 (4G LTE) | |
Display type | Dynamic AMOLED | TFT Super LCD 3 |
Screen size | 6.8" inches | 5.5" inches |
Screen-to-body ratio | ~89.4% (screen-to-body ratio) | ~67.2% (screen-to-body ratio) |
Display resolution | 1440x3200 pixels (20:9) | 720x1280 pixels |
Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
Pixel density (dot pitch) | 516 PPI | 267 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass Victus | Not supported |
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) | HTC Desire 820 (4G LTE) | |
System version | Android 11 | Android 4.4.2 KitKat |
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) | HTC Desire 820 (4G LTE) | |
Chipset | 64bit: Qualcomm Snapdragon 888 (SM8350) (5nm) | 64bit: Qualcomm Snapdragon 615 MSM8939 (28nm) |
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, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) |
GPU graphical controller | Qualcomm Adreno 660 (840MHz) | Qualcomm Adreno 405 |
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) | HTC Desire 820 (4G LTE) | |
RAM memory | 12GB LPDDR5 | 2GB LPDDR3 |
Internal storage | 256GB (220GB available) UFS 3.1 | 16GB (12GB available) |
External storage | Not supported | Until 128GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
Galaxy S21 Ultra (SM-G998U1 256GB) | HTC Desire 820 (4G LTE) | |
Dual-SIM | Dual-SIM Standby - Call active on one sim card | Not supported |
SIM card | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM | 1 slot (Single-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 | GSM 850/900/1800/1900 |
Primary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 | UMTS 850/900/1900/2100 - ASIA: 900/2100 |
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 900/1800/2100/2600 - ASIA: 1900/2300/2500/2600 |
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, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
Secondary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | Not supported |
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 | Not supported |
📷 Camera | ||
Galaxy S21 Ultra (SM-G998U1 256GB) | HTC Desire 820 (4G LTE) | |
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 | 13 megapixels |
Main camera resolution | 12000x9000 pixels | 4160x3120 pixels |
Video recording (primary) | 8K UHD (7680x4320) 24 fps | Full HD (1920x1080) 30 fps |
Flash | LED flash | 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 | feature not registered |
Pixel size | 1.8µm pixel | feature not registered |
Autofocus | PDAF: phase detection autofocus on both cameras | Autofocus |
Touch focus | Supported | Supported |
Image stabilization | OIS: Optical stabilization | feature not registered |
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 only main camera |
Camera extras | 4K@60fps 1080p@240fps 720p@960fps | feature not registered |
📸 Front camera | ||
Galaxy S21 Ultra (SM-G998U1 256GB) | HTC Desire 820 (4G LTE) | |
Front camera (secondary) | 40 megapixels | 8 megapixels |
Front camera resolution | 7296x5472 pixels | 3264x2448 pixels |
Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
Front flash | Not supported | Not supported |
Focal aperture | f/2.2 (aperture) | feature not registered |
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) | HTC Desire 820 (4G LTE) | |
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, WMV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
Galaxy S21 Ultra (SM-G998U1 256GB) | HTC Desire 820 (4G LTE) | |
USB | USB 3.2 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
Audio output | Type-C reversible connector | 3.5mm jack |
TV output | USB Type-C (reversible) | Not supported |
Bluetooth | 5.2 + A2DP/LE | 4.0 + A2DP |
WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot |
DLNA | Supported | Supported |
GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS |
NFC | Supported | Not supported |
Infrared port | Not supported | Not supported |
🧭 Sensors | ||
Galaxy S21 Ultra (SM-G998U1 256GB) | HTC Desire 820 (4G LTE) | |
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 Proximity sensor |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
Galaxy S21 Ultra (SM-G998U1 256GB) | HTC Desire 820 (4G LTE) | |
Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
Battery capacity | 5000 mAh | 2600 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 | 22 hours |
Standby | feature not registered | 424 hours (17.7 days) |
➕ Other features | ||
Galaxy S21 Ultra (SM-G998U1 256GB) | HTC Desire 820 (4G LTE) | |
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: White, Grey, Tangerine, Blue, Orange • HTC Sense UI 6.0 • HTC BoomSound • Face Fusion • Java framework |
☢️ Radiation rate | ||
Galaxy S21 Ultra (SM-G998U1 256GB) | HTC Desire 820 (4G LTE) | |
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 |