Samsung Galaxy A8s (SM-G887F/DS) vs Samsung Galaxy S21 Ultra (SM-G998U1 128GB)
Side by side comparison between Samsung Galaxy A8s vs Samsung Galaxy S21 Ultra phones, differences, pros, cons and full specifications. What's the better?
,
6.4"
PLS
PLS
1080x2340
24
MP
MP
24mp
6GB
RAM
RAM
Octa-core
3400
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-G998U1 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!
22 Common items in both devices |
128GB (109GB available) / 128GB (101GB available) |
Aluminum frame, glass front/back |
16 million |
LED flash |
Digital and optical zoom |
PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras |
HDR photo on both cameras / HDR photo/video on both cameras |
+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 Clear highlight📱 Model features | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
Model | Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) |
Other model names | Galaxy A8S (128GB+6GB RAM) SM-G8870ZKDCHC | Galaxy S21 Ultra 5G (SM-G998U1) Unlocked |
Country or region available | (Global, International), Taiwan | USA |
Brand | Samsung | Samsung |
Release date | 12/1/2018 | 1/29/2021, Announced: 1/14/2021 |
Depth | 7.4 millimeters (0.29 inches) | 8.9 millimeters (0.35 inches) |
Size (width x height) | 74.9 x 158.4 millimeters (2.95 x 6.24 in) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) |
Weight | 173 grams (6.06 ounces) | 227 grams (7.95 ounces) |
Build, materials | Aluminum frame, glass front/back | 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 A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
Display type | TFT PLS | Dynamic AMOLED |
Screen size | 6.4" inches | 6.8" inches |
Screen-to-body ratio | ~84.7% (screen-to-body ratio) | ~89.4% (screen-to-body ratio) |
Display resolution | 1080x2340 pixels | 1440x3200 pixels (20:9) |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
Pixel density (dot pitch) | 403 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 | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
System version | Android 9.0 Pie | Android 11 |
Firmware update | Android 10 | Android 14 |
User Interface | One UI | One UI 3.1 / 4.1 / 5.1 / 6.0 |
⚙️ Processor | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
Chipset | 64bit: Qualcomm Snapdragon 710 SDM710 (10nm) | 64bit: Qualcomm Snapdragon 888 (SM8350) (5nm) |
CPU | Octa-core, 2 processors: 2x 2.2GHz Kryo 360 Gold (Dual-core) 6x 1.7GHz Kryo 360 Silver (Hexa-core) | 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) |
GPU graphical controller | Qualcomm Adreno 616 500Mhz | Qualcomm Adreno 660 (840MHz) |
Performance (benchmark) | feature not registered | AnTuTu: 681099 (v8), 809165 (v9) Geekbench: 3539 (v5.2) GFXBench: 54fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
RAM memory | 6GB LPDDR4X | 12GB LPDDR5 |
Internal storage | 128GB (109GB available) eMMC 5.1 | 128GB (101GB available) UFS 3.1 |
External storage | Not supported | Not supported |
📶 Mobile networks | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card |
SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM |
Maximum Download / Upload | 800/150 Mbps | 5000/1920 Mbps |
Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
Frequency, bands | Expand band details Collapse details | |
GSM MHz band | Dual-Band 900/1800 | Quad-Band 850/900/1800/1900 |
Primary 2G network | GSM 900/1800 | CDMA 800/1900, GSM 850/900/1800/1900 |
Primary 3G network | UMTS 2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
Primary 4G network | LTE Cat15/13 (1, 3, 7, 8, 28) TD-LTE (38) | 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 |
Primary 5G network | Not supported | SA/NSA/Sub6 (2, 5, 25, 41, 66, 71) mmWave (260, 261) |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
Secondary 2G network | GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
Secondary 3G network | UMTS 2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
Secondary 4G network | Not supported | 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 |
Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
📷 Camera | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
Back camera (main camera) | (triple camera) 24 megapixels 10MP telephoto f/2.452mm1/3.9"1.0µmAF2x-optical-zoom 5MP depth f/2.2 | (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 | 5632x4224 pixels | 12000x9000 pixels |
Video recording (primary) | 4K UHD (3840x2160) 30 fps | 8K UHD (7680x4320) 24 fps |
Flash | LED flash | LED flash |
Focal aperture | f/1.7 (aperture) | f/1.8 (aperture) |
Focal length | 27mm lens | 26mm lens |
Sensor size | 1/2.8" inches | 1/1.33" inches |
Pixel size | 0.9µm pixel | 1.8µm pixel |
Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus on both cameras |
Touch focus | Supported | Supported |
Image stabilization | EIS: Digital 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 | Not supported | Supported |
HDR | HDR photo on both cameras | HDR photo/video on both cameras |
Camera extras | 1080p@240fps | 4K@60fps 1080p@240fps 720p@960fps |
📸 Front camera | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
Front camera (secondary) | 24 megapixels | 40 megapixels |
Front camera resolution | 5632x4224 pixels | 7296x5472 pixels |
Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
Front flash | Not supported | Not supported |
Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
Focal length | 26mm lens | 26mm lens |
Sensor size | 1/2.8" inches | 1/2.8" inches |
Pixel size | 0.9µm pixel | 0.7µm pixel |
🔉 Sound and multimedia | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
Loudspeaker | Stereo sound | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG |
Active noise cancellation | 2 microphones or more | 2 microphones or more |
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 A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
USB | USB 2.0 Type-C, 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 | 5.0 + A2DP/LE | 5.2 + A2DP/LE |
WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO 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, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
NFC | Supported | Supported |
Infrared port | Not supported | Not supported |
🧭 Sensors | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
Sensors | Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope 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 A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
Battery capacity | 3400 mAh | 5000 mAh |
Charger, watts | 18W Wired fast 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 | feature not registered | feature not registered |
Standby | feature not registered | feature not registered |
➕ Other features | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
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, Gradient Black, Blue, Pink-Blue, Yellow-Pink • Samsung Pay | • Colors: Phantom Black, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support |
☢️ Radiation rate | ||
Galaxy A8s (SM-G887F/DS) | Galaxy S21 Ultra (SM-G998U1 128GB) | |
SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.77W/kg (head), 1.02W/kg (body) |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |