Samsung Galaxy J6 (SM-J600GT/DS 32GB) vs Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB)
Side by side comparison between Samsung Galaxy J6 vs Samsung Galaxy S21 Ultra phones, differences, pros, cons and full specifications. What's the better?
,
5.6"
AMOLED
AMOLED
720x1480
13
MP
MP
8mp
2GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
vs
6.8"
AMOLED
AMOLED
1440x3200
108
MP
MP
40mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB)
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!
6 Advantages 
39 Advantages | 13 Common items in both devices |
| Super AMOLED / Dynamic AMOLED |
| 16 million |
| Autofocus / PDAF: phase detection autofocus on both cameras |
| Capacitive |
| Multitouch |
| Accelerometer |
| Face unlock |
| +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 J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Model | Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) |
| Other model names | Galaxy J6 TV (2GB RAM + 32GB) SM-J600GT/3DL, SM-J600GZVBZTO | Galaxy S21 Ultra 5G (SM-G998B/Dual-SIM) |
| Country or region available |  Brazil |  (Global, International) |
| Brand | Samsung | Samsung |
| Release date | 5/22/2018 | 1/29/2021, Announced: 1/14/2021 |
| Depth | 8.2 millimeters (0.32 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 70.2 x 149.3 millimeters (2.76 x 5.88 in) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) |
| Weight | 154 grams (5.39 ounces) | 227 grams (7.95 ounces) |
| Build, materials | Plastic body, glass front | 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 | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Display type | Super AMOLED | Dynamic AMOLED |
| Screen size | 5.6" inches | 6.8" inches |
| Screen-to-body ratio | ~75.9% (screen-to-body ratio) | ~89.4% (screen-to-body ratio) |
| Display resolution | 720x1480 pixels (18.5:9) | 1440x3200 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 294 PPI | 516 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass Victus |
| Refresh rate | 60Hz | 120Hz |
| Display features | Not supported | 1500nits[peak] HDR10+ Always-On Display |
🤖 Operating System | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| System version | Android 8.0 Oreo | Android 11 |
| Firmware update | Android 10 | Android 14 |
| User Interface | One UI 1.0 / 2.0 | One UI 3.1 / 4.1 / 5.1 / 6.0 |
⚙️ Processor | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Chipset | 64bit: Samsung Exynos 7870 (14nm) | 64bit: Samsung Exynos 2100 (5nm) |
| CPU | Octa-core, 1 processor: 8x 1.6GHz ARM Cortex-A53 (Octa-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 | ARM Mali-T830 MP1 (700MHz) | 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 | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| RAM memory | 2GB LPDDR3 | 12GB LPDDR5 |
| Internal storage | 32GB (22GB available) eMMC 5.1 | 128GB (101GB available) UFS 3.1 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM |
| 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 | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 66) TD-LTE (38, 40, 41) | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE |
| Primary 5G network | Not supported | SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78) |
| Primary data network | GPRS, EDGE, UMTS, 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 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| 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 on both cameras | LED flash |
| Focal aperture | f/1.9 (aperture) | f/1.8 (aperture) |
| Focal length | 28mm lens | 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 | Not supported | Supported |
| HDR | HDR photo only main camera | HDR photo/video on both cameras |
| Camera extras | feature not registered | 4K@60fps 1080p@240fps 720p@960fps |
📸 Front camera | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Front camera (secondary) | 8 megapixels | 40 megapixels |
| Front camera resolution | 3264x2448 pixels | 7296x5472 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | LED | Not supported |
| Focal aperture | f/1.9 (aperture) | 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 | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Loudspeaker | Mono sound (not stereo) | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM | FM |
| TV | Digital TV | Not supported |
| Video formats | MP4, H.265, H.264, H.263 | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | 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 | 4.2 + A2DP | 5.2 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Sensors | Accelerometer Face unlock Fingerprint sensor (rear-mounted) Hall effect Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3000 mAh | 5000 mAh |
| Charger, watts | 5W Wired charging | 25W Wired fast charging USB Power Delivery 3.0 |
| Inductive / wireless charging | Not supported | 15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging |
| Talk time autonomy | 21 hours | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Call control | Voice dialing, Voice recorder | 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, Gold, Silver, Violet | • Colors: Phantom Black, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support |
☢️ Radiation rate | ||
| Galaxy J6 (SM-J600GT/DS 32GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.18W/kg (head), 0.95W/kg (body) | 0.24W/kg (head), 0.72W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.714W/kg (head), 1.58W/kg (body) |