Samsung Galaxy S21 Ultra (SM-G998N 256GB) vs Samsung Galaxy J8 (SM-J810M/DS 64GB)
Side by side comparison between Samsung Galaxy S21 Ultra vs Samsung Galaxy J8 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
6"
AMOLED
AMOLED
720x1480
16
MP
MP
16mp
4GB
RAM
RAM
Octa-core
3500
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S21 Ultra (SM-G998N 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!
14 Common items in both devices |
Dynamic AMOLED / Super AMOLED |
16 million |
PDAF: phase detection autofocus on both cameras / Autofocus |
HDR photo/video on both cameras / HDR photo on both cameras |
Capacitive |
Multitouch |
Accelerometer |
+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 Clear highlight📱 Model features | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
Model | Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) |
Other model names | 갤럭시 S21 Ultra 5G (SM-G998N Single-SIM) | Galaxy J8 J810M/Dual-SIM (4GB RAM) |
Country or region available | South Korea | (Latin America), Brazil |
Brand | Samsung | Samsung |
Release date | 1/29/2021, Announced: 1/14/2021 | 8/1/2018, Announced: 5/31/2018 |
Depth | 8.9 millimeters (0.35 inches) | 8.2 millimeters (0.32 inches) |
Size (width x height) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) | 75.7 x 159.2 millimeters (2.98 x 6.27 in) |
Weight | 227 grams (7.95 ounces) | 177 grams (6.2 ounces) |
Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
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-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
Display type | Dynamic AMOLED | Super AMOLED |
Screen size | 6.8" inches | 6" inches |
Screen-to-body ratio | ~89.4% (screen-to-body ratio) | ~75.8% (screen-to-body ratio) |
Display resolution | 1440x3200 pixels (20:9) | 720x1480 pixels (18.5:9) |
Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
Pixel density (dot pitch) | 516 PPI | 274 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass Victus | Not supported |
Refresh rate | 120Hz | 60Hz |
Display features | 1500nits[peak] HDR10+ Always-On Display | Not supported |
🤖 Operating System | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
System version | Android 11 | Android 8.0 Oreo |
Firmware update | Android 14 | Android 10 |
User Interface | One UI 3.1 / 4.1 / 5.1 / 6.0 | One UI 2.0 |
⚙️ Processor | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
Chipset | 64bit: Samsung Exynos 2100 (5nm) | 64bit: Qualcomm Snapdragon 450 (SDM450) (14nm) |
CPU | 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) | Octa-core, 1 processor: 8x 1.8GHz ARM Cortex-A53 (Octa-core) |
GPU graphical controller | ARM Mali-G78 MP14 (854MHz) | Qualcomm Adreno 506 (600MHz) |
Performance (benchmark) | AnTuTu: 657150 (v8), 727634 (v9) Geekbench: 3457 (v5.2) GFXBench: 51fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
RAM memory | 12GB LPDDR5 | 4GB LPDDR3 |
Internal storage | 256GB (220GB available) UFS 3.1 | 64GB (51GB available) eMMC 5.1 |
External storage | Not supported | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
Maximum Download / Upload | 5000/1920 Mbps | 300/50 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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
Primary 4G network | 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 | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 17, 28) |
Primary 5G network | SA/NSA/Sub6 (77, 78) | Not supported |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
Secondary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
Secondary 4G network | Not supported | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 17, 28) |
Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
📷 Camera | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 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) 16 megapixels 5MP depth f/1.9 |
Main camera resolution | 12000x9000 pixels | 4608x3456 pixels |
Video recording (primary) | 8K UHD (7680x4320) 24 fps | Full HD (1920x1080) 30 fps |
Flash | LED flash | LED flash on both cameras |
Focal aperture | f/1.8 (aperture) | f/1.7 (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 | 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 on both cameras |
Camera extras | 4K@60fps 1080p@240fps 720p@960fps | feature not registered |
📸 Front camera | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 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 | LED |
Focal aperture | f/2.2 (aperture) | f/1.9 (aperture) |
Focal length | 26mm lens | 26mm lens |
Sensor size | 1/2.8" inches | 1/3.06" inches |
Pixel size | 0.7µm pixel | 1µm pixel |
🔉 Sound and multimedia | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Mono sound (not stereo) |
Active noise cancellation | 2 microphones or more | Not supported |
Radio | FM | FM (RDS) |
TV | Not supported | Not supported |
Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263 |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, OGG, eAAC+, FLAC |
🔌 Connectivity | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
USB | USB 3.2 Type-C, USB OTG On-The-Go | MicroUSB 2.0, USB OTG On-The-Go |
Audio output | Type-C reversible connector | 3.5mm jack |
TV output | USB Type-C (reversible) | Not supported |
Bluetooth | 5.2 + A2DP/LE | 4.2 + A2DP |
WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) 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-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) | Accelerometer Face unlock Fingerprint sensor (rear-mounted) Hall effect Proximity sensor |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
Battery capacity | 5000 mAh | 3500 mAh |
Charger, watts | 25W Wired fast charging USB Power Delivery 3.0 | 7.75W (5V/1.55A) Wired charging |
Inductive / wireless charging | 15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging | Not supported |
Talk time autonomy | feature not registered | 23 hours |
Standby | feature not registered | feature not registered |
➕ Other features | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, 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, Blue, Lavender, Purple |
☢️ Radiation rate | ||
Galaxy S21 Ultra (SM-G998N 256GB) | Galaxy J8 (SM-J810M/DS 64GB) | |
SAR 1.6W/kg (USA, Mexico, etc.) | 0.489W/kg (head), 1.1W/kg (body) | 1.37W/kg (head), 1.34W/kg (body) |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |