Samsung Galaxy S20 Ultra (SM-G988B/DS) vs Samsung Galaxy S21
Side by side comparison between Samsung Galaxy S20 Ultra vs Samsung Galaxy S21 phones, differences, pros, cons and full specifications. What's the better?
,
6.9"
AMOLED
AMOLED
1440x3200
108
MP
MP
40mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.2"
AMOLED
AMOLED
1080x2400
12.2
MP
MP
10mp
8GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S20 Ultra (SM-G988B/DS)
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!
 11 Advantages Samsung Galaxy S20 Ultra (SM-G988B/DS) | vs |  8 Advantages Samsung Galaxy S21 |
| +12GB LPDDR5 | vs | 8GB LPDDR5 |
| +Until 1TB microSD, microSDXC | vs | Not supported |
| +1440x3200 pixels | vs | 1080x2400 pixels |
| +509 PPI | vs | 424 PPI |
| +6.9" | vs | 6.2" |
| +(quad camera) 108MP + 48MP + 12MP + 0.3MP | vs | (triple camera) 12.2MP + 64MP + 12MP |
| +1/1.33" inches | vs | 1/1.76" inches |
| +(front) 40MP | vs | (front) 10MP |
| +ANT+ | vs | Not supported |
| +5000 mAh | vs | 4000 mAh |
| +45W | vs | 25W |
| 2.73GHz 64bit Octa-core (7nm) | vs | +2.9GHz 64bit Octa-core (5nm) |
| UFS 3.0 | vs | +UFS 3.1 |
| 220 grams (7.7 ounces) | vs | +169 grams (5.92 ounces) |
| 8.8 millimeters (0.35 inches) | vs | +7.9 millimeters (0.31 inches) |
| Android 13 | vs | +Android 15 |
| 4G LTE-A | vs | +5G Sub6 |
| (4G LTE-A) 2000 Mbps | vs | +(5G Sub6) 5000 Mbps |
| Not supported | vs | +FM |
| 43 Common items in both devices |
| 128GB (104GB available) |
| Aluminum frame, glass front/back / Aluminum body, glass front, plastic back |
| Dynamic AMOLED |
| HDR10+ |
| 120Hz |
| 16 million |
| LED flash |
| +36 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 S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| Model | Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 |
| Other model names | Galaxy S20 Ultra 4G-LTE SM-G988B/Dual-Sim (Exynos, 12GB RAM) | Galaxy S21 5G SM-G991B/DS |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Samsung | Samsung |
| Release date | 3/15/2020, Announced: 2/11/2020 | 1/29/2021, Announced: 1/14/2021 |
| Depth | 8.8 millimeters (0.35 inches) | 7.9 millimeters (0.31 inches) |
| Size (width x height) | 76 x 166.9 millimeters (2.99 x 6.57 in) | 71.2 x 151.7 millimeters (2.8 x 5.97 in) |
| Weight | 220 grams (7.7 ounces) | 169 grams (5.92 ounces) |
| Build, materials | Aluminum frame, glass front/back | Aluminum body, glass front, plastic back |
| 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 S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| Display type | Dynamic AMOLED | Dynamic AMOLED |
| Screen size | 6.9" inches | 6.2" inches |
| Screen-to-body ratio | ~90.6% (screen-to-body ratio) | ~85.9% (screen-to-body ratio) |
| Display resolution | 1440x3200 pixels (20:9) | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 509 PPI | 424 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 6 | Gorilla Glass Victus |
| Refresh rate | 120Hz | 120Hz |
| Display features | HDR10+ Always-On Display 120Hz@FHD 60Hz@QHD | 1300nits[peak] HDR10+ Always-On Display |
🤖 Operating System | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| System version | Android 10 | Android 11 |
| Firmware update | Android 13 | Android 15 |
| User Interface | One UI 2.5 / 3.1 / 4.1 / 5.0 | One UI 3.1 / 4.1 / 5.1 / 6.0 / 7.0 |
⚙️ Processor | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| Chipset | 64bit: Samsung Exynos 990 (7nm) | 64bit: Samsung Exynos 2100 (5nm) |
| CPU | Octa-core, 3 processors: 2x 2.73GHz Mongoose M5 (Dual-core) 2x 2.5GHz ARM Cortex-A76 (Dual-core) 4x 2GHz ARM Cortex-A55 (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 | ARM Mali-G77 MP11 (800MHz) | ARM Mali-G78 MP14 (854MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| RAM memory | 12GB LPDDR5 | 8GB LPDDR5 |
| Internal storage | 128GB (104GB available) UFS 3.0 | 128GB (104GB available) UFS 3.1 |
| External storage | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Not supported |
📶 Mobile networks | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 2000/316 Mbps | 5000/1920 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band details Collapse details | |
📷 Camera | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| Back camera (main camera) | (quad camera) 108 megapixels 48MP periscope telephoto f/3.5103mm1/2.0"0.8µmPDAFOIS4x-optical-zoom10x-hybrid-zoom 12MP ultrawide f/2.213mm1.4µmSuper-Steady-video 0.3MP TOF 3D f/1.0 | (triple camera) 12.2 megapixels 64MP telephoto f/2.029mm1/1.72"0.8µmPDAFOIS1.1x-optical-zoom3x-hybrid-zoom 12MP ultrawide f/2.213mm120°1/2.55"1.4µmSuper-Steady-video |
| Main camera resolution | 12000x9000 pixels | 4032x3024 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | 8K UHD (7680x4320) 24 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm (lens) | 26mm (lens) |
| Sensor size | 1/1.33" inches | 1/1.76" inches |
| Pixel size | 0.8µm pixel | 1.8µm pixel |
| Autofocus | PDAF: phase detection autofocus on both cameras | PDAF: phase detection autofocus on both cameras |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | OIS: Optical stabilization |
| Zoom | Digital and optical zoom | Digital and optical 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/video on both cameras |
| Camera extras | 4K@60fps 1080p@240fps 720p@960fps | 4K@60fps 1080p@240fps 720p@960fps |
📸 Front camera | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| Front camera (secondary) | 40 megapixels | 10 megapixels |
| Front camera resolution | 7296x5472 pixels | 3872x2592 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.2 (aperture) |
| Focal length | 26mm (lens) | 26mm (lens) |
| Sensor size | feature not registered | 1/3.24" inches |
| Pixel size | 0.7µm pixel | 1.22µm pixel |
🔉 Sound and multimedia | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG |
| Active noise cancellation | 2 microphones | 2 microphones |
| Radio | Not supported | FM |
| 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 S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | USB 3.2 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 | 5.0 + A2DP/LE | 5.0 + 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 | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| Sensors | Accelerometer Ambient light sensor ANT+ Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 4000 mAh |
| Charger, watts | 45W Wired fast charging USB Power Delivery 3.0 | 25W Wired fast charging USB Power Delivery 3.0 |
| Inductive / wireless charging | 15W Qi wireless charging (Qi/PMA) 9W Reverse wireless charging | 15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| 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: Cosmic Black, Cosmic Grey, Cloud White • Ultrasonic fingerprint sensor • Bixby • Samsung DeX • Samsung Pay (MST, NFC) | • Colors: Phantom Gray, White, Violet, Pink • Samsung Pay (Visa, MasterCard) • Samsung DeX |
☢️ Radiation rate | ||
| Galaxy S20 Ultra (SM-G988B/DS) | Galaxy S21 | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.74W/kg (head), 1.12W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.319W/kg (head), 1.557W/kg (body) | 0.456W/kg (head), 1.509W/kg (body) |