Samsung Galaxy Quantum 2 vs Samsung Galaxy S8 Plus (SM-G9550 128GB)
Side by side comparison between Samsung Galaxy Quantum 2 vs Samsung Galaxy S8 Plus phones, differences, pros, cons and full specifications. What's the better?
,
6.7"
AMOLED
AMOLED
1440x3200
64
MP
MP
10mp
6GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
6.2"
AMOLED
AMOLED
1440x2960
12.2
MP
MP
8mp
6GB
RAM
RAM
Octa-core
3500
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S8 Plus (SM-G9550 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!
13 Advantages 
19 Advantages | 27 Common items in both devices |
| 6GB LPDDR4X / 6GB LPDDR4 |
| 128GB (102GB available) / 128GB (111GB available) |
| Until 1TB microSD, microSDXC |
| 8.1 millimeters (0.32 inches) |
| Dynamic AMOLED / Super AMOLED |
| 16 million |
| LED flash |
| +20 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 Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| Change model | ||
| Model | Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) |
| Other model names | Galaxy Quantum 2 5G (SM-A826S), 갤럭시 퀀텀2 (SKT) | Galaxy S8+ Duos 6GB/128GB (Snapdragon), Samsung Dream 2 |
| Country or region available |  South Korea |  China |
| Brand | Samsung | Samsung |
| Release date | 4/23/2021, Announced: 4/13/2021 | 4/21/2017, Announced: 3/29/2017 |
| Depth | 8.1 millimeters (0.32 inches) | 8.1 millimeters (0.32 inches) |
| Size (width x height) | 73.8 x 161.9 millimeters (2.91 x 6.37 in) | 73.4 x 160 millimeters (2.89 x 6.3 in) |
| Weight | 176 grams (6.16 ounces) | 173 grams (6.06 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 Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| Display type | Dynamic AMOLED | Super AMOLED |
| Screen size | 6.7" inches | 6.2" inches |
| Screen-to-body ratio | ~90.7% (screen-to-body ratio) | ~83.1% (screen-to-body ratio) |
| Display resolution | 1440x3200 pixels (20:9) | 1440x2960 pixels (18.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 524 PPI | 531 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 5 |
| Refresh rate | 120Hz | 60Hz |
| Display features | 1200nits[peak] Always-On Display | HDR10 |
🤖 Operating System | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| System version | Android 11 | Android 7.0 Nougat |
| Firmware update | Android 13 | Android 9.0 Pie |
| User Interface | One UI 3.1 / 4.1 / 5.0 | feature not registered |
⚙️ Processor | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 855+ (SM8150-AC) (7nm) | 64bit: Qualcomm Snapdragon 835 (MSM8998) (10nm) |
| CPU | Octa-core, 3 processors: 1x 2.96GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.8GHz Kryo 485 (Quad-core) | Octa-core, 2 processors: 4x 2.35GHz Kryo 280 (Quad-core) 4x 1.9GHz Kryo 280 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 640 (672MHz) | Qualcomm Adreno 540 (670-710MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| RAM memory | 6GB LPDDR4X | 6GB LPDDR4 |
| Internal storage | 128GB (102GB available) UFS 3.0 | 128GB (111GB available) UFS 2.0 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 1024/150 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 | CDMA 800, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | CDMA2000 TD-SCDMA 1900/2000 UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE | LTE Cat16 (1,2,3,4,5,7,8,12,20,28,29,30) TD-LTE (38,39,40,41) |
| Primary 5G network | SA/NSA/Sub6 (78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| Back camera (main camera) | (triple camera) 64 megapixels 12MP ultrawide f/2.2123°1.12µm 5MP macro f/2.4 | 12.2 megapixels |
| Main camera resolution | 10120x6328 pixels | 4032x3024 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.7 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | 1/1.72" inches | 1/2.55" inches |
| Pixel size | 0.8µm pixel | 1.4µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF on back camera and autofocus front camera |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | OIS: Optical stabilization |
| Zoom | Only digital 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/video on both cameras |
| Camera extras | 4K@30fps 1080p@30/60fps 1080p@240fps (slow motion) | feature not registered |
📸 Front camera | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| Front camera (secondary) | 10 megapixels | 8 megapixels |
| Front camera resolution | 3872x2592 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 2K UHD (2560x1440) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/1.7 (aperture) |
| Focal length | feature not registered | 25mm lens |
| Sensor size | feature not registered | 1/3.6" inches |
| Pixel size | feature not registered | 1.22µm pixel |
🔉 Sound and multimedia | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| Loudspeaker | Stereo sound | Supported |
| 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, DivX, XviD |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 3.1 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | 3.5mm jack |
| 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 [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (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 Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor ANT+ Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Heart rate Iris scanner Proximity sensor SpO2 |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 4500 mAh | 3500 mAh |
| Charger, watts | 25W Wired fast charging | 15W (9V/1.67A) Wired fast charging Quick Charge 2 |
| Inductive / wireless charging | Not supported | Qi wireless charging (Qi/PMA) |
| Talk time autonomy | feature not registered | 34 hours (1.4 days) |
| Standby | feature not registered | 343 hours (14.3 days) |
➕ Other features | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 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, White, Violet | • Colors: Black, Silver, Blue, Gold, Orchid Gray • Samsung DeX (desktop experience) • Curved edge screen • Corning Gorilla Glass 5 back panel • Samsung Gear VR compatible • Samsung Pay • 32bit/192kHz audio |
☢️ Radiation rate | ||
| Galaxy Quantum 2 | Galaxy S8 Plus (SM-G9550 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |