Samsung Galaxy S8 Plus (SM-G955W) vs Samsung Galaxy S9 Plus (SM-G9650 128GB)
Side by side comparison between Samsung Galaxy S8 Plus vs Samsung Galaxy S9 Plus phones, differences, pros, cons and full specifications. What's the better?
,
6.2"
AMOLED
AMOLED
1440x2960
12.2
MP
MP
8mp
4GB
RAM
RAM
Octa-core
3500
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 S9 Plus (SM-G9650 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!
 2 Advantages Samsung Galaxy S8 Plus (SM-G955W) | vs |  10 Advantages Samsung Galaxy S9 Plus (SM-G9650 128GB) |
| +173 grams (6.06 ounces) | vs | 189 grams (6.62 ounces) |
| +8.1 millimeters (0.32 inches) | vs | 8.5 millimeters (0.33 inches) |
| 2.35GHz 64bit Octa-core (10nm) | vs | +2.8GHz 64bit Octa-core (10nm) |
| 4GB LPDDR4 | vs | +6GB LPDDR4X |
| 64GB (51GB available) | vs | +128GB (111GB available) |
| UFS 2.0 | vs | +UFS 2.1 |
| (back) 12.2MP | vs | +(dual camera) 12.2MP + 12MP |
| Only digital zoom | vs | +Digital and optical zoom |
| f/1.7 (aperture) | vs | +f/1.5 (aperture) |
| Android 9.0 Pie | vs | +Android 10 |
| (4G LTE-A) 1024 Mbps | vs | +(4G LTE-A) 1200 Mbps |
| 1 slot (Single-SIM) (dedicated slot) | vs | +2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot) |
| 52 Common items in both devices |
| Until 1TB microSD, microSDXC |
| Aluminum frame, glass front/back |
| Super AMOLED |
| HDR10 |
| 60Hz |
| 16 million |
| 1440x2960 pixels |
| +45 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 S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| Model | Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) |
| Other model names | Bell/Rogers Galaxy S8+ G955W (Snapdragon), Samsung Dream 2 | Galaxy S9+ SM-G9650/DS (Snapdragon), SM-G9650/1DL |
| Country or region available |  Canada |   Brazil, China |
| Brand | Samsung | Samsung |
| Release date | 4/21/2017, Announced: 3/29/2017 | 3/9/2018, Announced: 2/25/2018 |
| Depth | 8.1 millimeters (0.32 inches) | 8.5 millimeters (0.33 inches) |
| Size (width x height) | 73.4 x 160 millimeters (2.89 x 6.3 in) | 73.8 x 158.1 millimeters (2.91 x 6.22 in) |
| Weight | 173 grams (6.06 ounces) | 189 grams (6.62 ounces) |
| Build, materials | Aluminum frame, glass front/back | Aluminum frame, glass front/back Back: Gorilla Glass 5 |
| 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 S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| Display type | Super AMOLED | Super AMOLED |
| Screen size | 6.2" inches | 6.2" inches |
| Screen-to-body ratio | ~83.1% (screen-to-body ratio) | ~83.6% (screen-to-body ratio) |
| Display resolution | 1440x2960 pixels (18.5:9) | 1440x2960 pixels (18.5:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 531 PPI | 531 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass 5 |
| Refresh rate | 60Hz | 60Hz |
| Display features | HDR10 | HDR10 Always-On Display |
🤖 Operating System | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| System version | Android 7.0 Nougat | Android 8.0 Oreo |
| Firmware update | Android 9.0 Pie | Android 10 |
| User Interface | feature not registered | One UI 2.5 |
⚙️ Processor | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 835 (MSM8998) (10nm) | 64bit: Qualcomm Snapdragon 845 (SDM845) (10nm) |
| CPU | Octa-core, 2 processors: 4x 2.35GHz Kryo 280 (Quad-core) 4x 1.9GHz Kryo 280 (Quad-core) | Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 540 (670-710MHz) | Qualcomm Adreno 630 (710MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 265163 (v7), 344891 (v8) Geekbench: 8393 (4.2) |
💽 Memory and storage | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| RAM memory | 4GB LPDDR4 | 6GB LPDDR4X |
| Internal storage | 64GB (51GB available) UFS 2.0 | 128GB (111GB available) UFS 2.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 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 | 1024/150 Mbps | 1200/150 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
📷 Camera | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| Back camera (main camera) | 12.2 megapixels | (dual camera) 12.2 megapixels 12MP telephoto f/2.41/3.4"52mm1.0µmAFOIS2x-optical-zoom |
| Main camera resolution | 4032x3024 pixels | 4032x3024 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.5 (aperture) |
| Focal length | 26mm (lens) | 26mm (lens) |
| Sensor size | 1/2.55" inches | 1/2.55" inches |
| Pixel size | 1.4µm pixel | 1.4µm pixel |
| Autofocus | PDAF on back camera and autofocus front camera | PDAF on back camera and autofocus front camera |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical 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 | Supported | Supported |
| HDR | HDR photo/video on both cameras | HDR photo/video on both cameras |
| Camera extras | feature not registered | 1080p@240fps 720p@960fps |
📸 Front camera | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| Front camera (secondary) | 8 megapixels | 8 megapixels |
| Front camera resolution | 3264x2448 pixels | 3264x2448 pixels |
| Video recording (secondary) | 2K UHD (2560x1440) | 2K UHD (2560x1440) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/1.7 (aperture) | f/1.7 (aperture) |
| Focal length | 25mm (lens) | 25mm (lens) |
| Sensor size | 1/3.6" inches | 1/3.6" inches |
| Pixel size | 1.22µm pixel | 1.22µm pixel |
🔉 Sound and multimedia | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| Loudspeaker | Supported | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, DivX, XviD | MP4, H.265, H.264, H.263, DivX, XviD |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| USB | USB 3.1 Type-C, USB OTG On-The-Go | USB 3.1 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 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 | 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 S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Heart rate Iris scanner Proximity sensor SpO2 | 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 S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3500 mAh | 3500 mAh |
| Charger, watts | 15W (9V/1.67A) Wired fast charging Quick Charge 2 | 15W (9V/167A) Wired fast charging Quick Charge 2 |
| Inductive / wireless charging | Qi wireless charging (Qi/PMA) | Qi wireless charging (Qi/PMA) |
| Talk time autonomy | 34 hours (1.4 days) | feature not registered |
| Standby | 343 hours (14.3 days) | feature not registered |
➕ Other features | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 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, 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 | • Colors: Black, Silver, Blue, Gold, Orchid Gray • Samsung DeX • Samsung Gear VR • Samsung Pay |
☢️ Radiation rate | ||
| Galaxy S8 Plus (SM-G955W) | Galaxy S9 Plus (SM-G9650 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.46W/kg (head), 1.01W/kg (body) | 0.61W/kg (head), 0.77W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.28W/kg (head), 1.08W/kg (body) |