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Phone Comparison

OnePlus 3 vs Samsung Galaxy S8 Comparison

A detailed, side-by-side comparison to help you pick the right phone.

OnePlus 3
OnePlus
OnePlus 3
8.7 / 10
Compass Score
From 53 critic reviews
Full review →
Samsung Galaxy S8
Samsung
Samsung Galaxy S8
9.0 / 10
Compass Score
From 79 critic reviews
Full review →
Verdict

Pros & cons

OnePlus 3

+
Good
+ Great battery life
+ All-metal chassis
+ Blazing performance
+ 6GB of RAM
+ Dual SIM support
+ High level of software customization options
−
Not
− Finicky camera
− No microSD support
− Non-removeable battery
− Concerns about memory availability
− Proprietary cable/charger required for quick charging

Galaxy S8

+
Good
+ Future-proof features and performance
+ Blazing performance
+ Stunning design
+ Gigabit LTE support
+ MicroSD support
+ Plenty of internal storage
+ All-day battery life
+ QuickCharge and wireless charging support
+ Crisp, vibrant display
+ Great camera (even in low lighting)
−
Not
− Slippery finish
− Darker colors are fingerprint magnets
− Hard-to-find fingerprint scanner
− Screen measurement might mislead
Spec data

How they compare

Choosing the cheaper OnePlus 3 means giving up most on: Weight

OnePlus 3
Galaxy S8
Price (MSRP)
$399
Price (MSRP)
$725
OS
Android
OS
Android
Processor
Qualcomm MSM8996 Snapdragon 820 Quad core
Processor
Qualcomm MSM8998 Snapdragon 835 Octa core
Camera zoom
—
Camera zoom
—
Battery life
—
Battery life
—
Wired charging
—
Wired charging
—
Wireless charging
—
Wireless charging
—
Display
Color
Display
Color
Software support
—
Software support
—
Repairability
—
Repairability
—
Weight
158g (5.6 oz)
Weight
155g (5.5 oz)
Fingerprint
No
Fingerprint
Yes
Highlighted cells indicate the stronger value where a clear winner exists.

Specifications are sourced from manufacturers and third-party databases and may contain errors. Suggest a correction →

Physical comparison

Size & weight

Footprint · to scale
OnePlus 3
6" × 3"
Galaxy S8
5.9" × 2.7"
Thickness · to scale
OnePlus 3
0.3"
Galaxy S8
0.3"
Height
6" (153 mm)
Height
5.9" (149 mm)
Width
3" (75 mm)
Width
2.7" (68 mm)
Depth
0.3" (7 mm)
Depth
0.3" (8 mm)
Weight
158g (5.6 oz)
Weight
155g (5.5 oz)
Screen
5.5"
Screen
5.8"

Dimensions shown in inches (mm). Silhouettes are proportionally scaled for visual comparison.

Common questions

OnePlus 3 vs Galaxy S8 — FAQ

Which is better, the OnePlus 3 or Galaxy S8?
Based on aggregated critic reviews, the Galaxy S8 earns a Compass Score of 9.0 compared to 8.7 for the OnePlus 3. That 0.3-point gap reflects stronger reviews across the board, though individual priorities like camera quality, battery life, or price could tip the scales the other way. Scores aggregate dozens of expert opinions, so they are a useful starting point, not the final word.
Which phone is more affordable, the OnePlus 3 or Galaxy S8?
The OnePlus 3 launches at $399, which is $326 less than the Galaxy S8 at $725. Street prices shift after launch, so check current deals for both phones before deciding.

Specifications sourced from manufacturers and third-party databases. Last updated April 2026. Suggest a correction →