Samsung Galaxy S8 Plus vs Samsung Galaxy S9 Plus
A spec-by-spec comparison of the Samsung Galaxy S8 Plus and the Samsung Galaxy S9 Plus, taken from their full specification sheets. Green marks the better value in each measured row.
Head to head
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| Price | $99 | $85 |
| Our rating | 8/10 | 8/10 |
| Battery | 3,500 mAh | 3,500 mAh |
| Wired charging | 15W | 15W |
| Storage (max) | 256 GB | 256 GB |
| Screen size | 6.2 in | 6.2 in |
| Main camera | 12 MP | 12 MP |
| Weight (lower is lighter) | 173 g | 189 g |
| Released | Apr 2017 | Mar 2018 |
Summary: Samsung Galaxy S8 Plus is ahead on weight (lower is lighter).
★ Which should you buy? Samsung Galaxy S8 Plus is the stronger overall pick on the measured specs. If budget matters more than the extra capability, Samsung Galaxy S9 Plus is the cheaper option.
Reviewed by the infozme.com Editorial Team — see how we research & rate phones.
Display
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| Type | Super AMOLED capacitive touchscreen, 16M colors | Super AMOLED, HDR10 |
| Size | 6.2 inches, 98.3 cm² (~84.0% screen-to-body ratio) | 6.2 inches, 98.3 cm² (~84.2% screen-to-body ratio) |
| Resolution | 1440 x 2960 pixels, 18.5:9 ratio (~529 ppi density) | 1440 x 2960 pixels, 18.5:9 ratio (~529 ppi density) |
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 5 |
| Features | HDR10 compliant, Always-on display, 3D curved glass screen, Force Touch (home button only) | — |
Platform
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| OS | Android 7.0 (Nougat), upgradable to Android 9.0 (Pie), One UI | Android 8.0 (Oreo), upgradable to Android 10 |
| Chipset (International) | Exynos 8895 Octa | — |
| Chipset (USA/China) | Qualcomm MSM8998 Snapdragon 835 | — |
| CPU (Exynos) | Octa-core (4x2.3 GHz M2 Mongoose & 4x1.7 GHz Cortex-A53) | — |
| CPU (Snapdragon) | Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo) | — |
| GPU (Exynos) | Mali-G71 MP20 | — |
| GPU (Snapdragon) | Adreno 540 | — |
| Chipset | — | Exynos 9810 (EMEA) or Qualcomm MSM8998 Snapdragon 845 (USA/LATAM/China) |
| CPU | — | Octa-core (4x2.7 GHz Mongoose M3 & 4x1.8 GHz Cortex-A55) - EMEA; Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver) - USA/LATAM/China |
| GPU | — | Mali-G72 MP18 - EMEA; Adreno 630 - USA/LATAM/China |
Memory
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| RAM | 4GB | 6GB |
| Internal Storage | 64GB | — |
| Card Slot | microSDXC (dedicated slot up to 256GB) | microSDXC (uses shared SIM slot for dual SIM model) |
| Internal | — | 64GB/128GB/256GB UFS 2.1 |
Main Camera
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| Resolution | 12 MP, f/1.7, 26mm (wide), 1/2.55", 1.4µm, Dual Pixel PDAF, OIS | — |
| Features | LED flash, auto-HDR, panorama | LED flash, auto-HDR, panorama |
| Video | 4K@30fps, 1080p@60fps, 720p@240fps, HDR, dual-video rec. | 4K@60fps (no OIS), 4K@30fps, 1080p@240fps, 720p@960fps, HDR, stereo sound rec., gyro-EIS, OIS |
| Dual | — | 12 MP, f/1.5-2.4, 26mm (wide), 1/2.55", 1.4µm, Dual Pixel PDAF, OIS; 12 MP, f/2.4, 52mm (telephoto), 1/3.6", 1.0µm, AF, OIS, 2x optical zoom |
Selfie Camera
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| Resolution | 8 MP, f/1.7, 25mm (wide), 1/3.6", 1.22µm, AF | — |
| Features | Dual video call, Auto-HDR | Dual video call, Auto-HDR |
| Single | — | 8 MP, f/1.7, 25mm (wide), 1/3.6", 1.22µm, AF |
| Video | — | 1440p@30fps |
Battery
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| Type | Non-removable Li-Ion 3500 mAh | Li-Ion 3500 mAh, non-removable |
| Charging | Fast charging 15W (Quick Charge 2.0), Qi/PMA wireless charging | 15W wired (Quick Charge 2.0), Qi/PMA wireless charging |
Body
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| Dimensions | 159.5 x 73.4 x 8.1 mm | 158.1 x 73.8 x 8.5 mm |
| Weight | 173 g | 189 g |
| Build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame |
| SIM | Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by) |
| Water & Dust Resistance | IP68 dust/water resistant (up to 1.5m for 30 min) | IP68 dust/water resistant (up to 1.5m for 30 min) |
Comms
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth | 5.0, A2DP, LE, aptX | 5.0, A2DP, LE, aptX |
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | GPS, GLONASS, BDS, GALILEO |
| NFC | Yes | Yes |
| USB | USB Type-C 3.1 | USB Type-C 3.1 |
Launch
| Samsung Galaxy S8 Plus | Samsung Galaxy S9 Plus |
|---|
| Announced | March 29, 2017 | 2018, February 25 |
| Status | Available. Released April 21, 2017 | — |
| Released | — | 2018, March 16 |
Frequently asked questions
Which is lighter, Samsung Galaxy S8 Plus or Samsung Galaxy S9 Plus?
Samsung Galaxy S8 Plus — 173 g for the Samsung Galaxy S8 Plus versus 189 g for the Samsung Galaxy S9 Plus.
Which is newer, Samsung Galaxy S8 Plus or Samsung Galaxy S9 Plus?
Samsung Galaxy S9 Plus — Apr 2017 for the Samsung Galaxy S8 Plus versus Mar 2018 for the Samsung Galaxy S9 Plus.
Is the Samsung Galaxy S8 Plus or the Samsung Galaxy S9 Plus rated higher?
We rate the Samsung Galaxy S8 Plus 8/10 and the Samsung Galaxy S9 Plus 8/10.
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