BeastCompare

Galaxy S9 vs OnePlus One: Which One Should You Buy?

Galaxy S9 edges ahead with a BeastScore of 64.8/100 — but the right choice depends on what matters to you.

Head-to-head
Comparing 2 devicesSwipe ⇄
Samsung · 2018

Galaxy S9

Galaxy S9
65/ 100
Launch price$720
Oneplus · 2014

OnePlus One

OnePlus One
65/ 100
Launch price$299
Head-to-head

Galaxy S9 wins 3 of 7 categories

Here's exactly where each phone is stronger.

Galaxy S9
Galaxy S9
3 wins
OnePlus One
OnePlus One
1 win
At a glance

Bigger shape = better phone.

SpeedCameraSelfieBatteryDisplayConnectivityValue
Galaxy S9OnePlus One
Category winners

Scores out of 100. How we score

  • SpeedGalaxy S9
    64
    60
  • CameraGalaxy S9
    72
    68
  • VideoNot enough data
  • SelfieTie
    40
    40
  • BatteryTie
    58
    58
  • DisplayTie
    62
    62
  • ConnectivityGalaxy S9
    65
    45
  • SecurityNot enough data
  • ValueOnePlus One
    68
    90
Key differences
  • OnePlus One has the bigger battery3,100 mAh vs 3,000 mAh
  • Galaxy S9 charges faster15W vs 10W
  • OnePlus One has a sharper main camera13 MP vs 12 MP
  • Galaxy S9 has the bigger screen5.8" vs 5.5"
  • OnePlus One is lighter162 g vs 163 g
  • OnePlus One launched cheaper$299 vs $720
  • Galaxy S9 has a sharper selfie camera8 MP vs 5 MP
  • Galaxy S9 has newer Bluetooth5 vs 4.1
  • Galaxy S9 has more RAM4 GB vs 3 GB
See all specs ↓

Why buy each phone

Swipe ⇄
Reasons to buy Galaxy S9
  • ✓12 MP main camera
  • ✓5.8" display at 60 Hz
Reasons to buy OnePlus One
  • ✓1 g lighter (162 g vs 163 g), easier to hold
  • ✓$421 cheaper at launch ($299 vs $720)
  • ✓Bigger 3,100 mAh battery (+100 mAh)

Full specifications

Swipe ⇄
SpecificationGalaxy S9OnePlus One
1. Display & Screen
Screen typeSuper AMOLEDLTPS LCD
Screen Size5.8"5.5"
Resolution & Density2960x1440 (570 ppi)1920x1080 (401 ppi)
Refresh Rate60 Hz60 Hz
Brightness864 nits peak480 nits peak
Screen ProtectionNot listedNot listed
2. Platform & Performance🏆 Galaxy S9 Wins Performance
Chipset / ProcessorNot listed Not listed
CPU CoresNot listedNot listed
GPU GraphicsNot listedNot listed
Operating SystemAndroid 8.0Android 4.4
3. Memory & Storage
RAM Memory4 GB LPDDR3 GB LPDDR
Internal Storage64GB / 128GB / 256GB16GB / 64GB
Storage SpeedNot listedNot listed
Card SlotNoNo
4. Main Camera Optics🏆 Galaxy S9 Wins Camera
Primary Camera12 MP, f/1.5, OIS13 MP, f/2, Sony IMX214
Telephoto ZoomNone (digital zoom only)None (digital zoom only)
Ultrawide CameraN/AN/A
LiDAR / DepthNoneNone
5. Video
Main Camera Video
Not listed
Not listed
Front Video
Not listed
Not listed
6. Selfie Camera
Selfie Lens8 MP, f/1.75 MP, f/2
7. Body & Dimensions🏆 OnePlus One Lightest Chassis
Dimensions147.7 x 68.7 x 8.5 mm152.9 x 75.9 x 8.9 mm
Weight163 g162 g
Build MaterialsNot listedNot listed
SIM TypeNot listedNot listed
Water ResistanceIP68Not listed
8. Battery & Charging
Battery Capacity3,000 mAh3,100 mAh
Wired Fast Charging15W wired fast charging10W wired fast charging
Wireless Charging10W wireless chargingNot listed
Reverse ChargingNot listedNot listed
9. Sound & Audio
LoudspeakerNot listedNot listed
3.5mm Headphone JackNoNo
10. Connectivity
Wi-Fi StandardWi-Fi 5Wi-Fi 5
Bluetooth5.04.1
USB Port & SpeedUSB-C 3.1Micro-USB 2.0
NFCYes (contactless payment)Yes (contactless payment)
11. Sensors & Security
SensorsNot listedNot listed
Satellite FeaturesNot listedNot listed
12. Colors & Overview
ColorsNot listedNot listed
Launch Price$720$299
Our verdict

Galaxy S9 wins — BeastScore 64.8/100

The Galaxy S9 is the better pick for most people thanks to its faster charging (15W vs 10W) and bigger screen (5.8" vs 5.5"). The OnePlus One is worth a look if you prefer its bigger battery (3,100 mAh vs 3,000 mAh).

Buy Galaxy S9 if you want

Brighter screen: 864 nits vs 480 nits

Buy OnePlus One if you want

Lower launch price: $299 vs $720

Common questions

Which is better: Galaxy S9 or OnePlus One?

The Galaxy S9 is the better pick for most people thanks to its faster charging (15W vs 10W) and bigger screen (5.8" vs 5.5"). The OnePlus One is worth a look if you prefer its bigger battery (3,100 mAh vs 3,000 mAh). BeastScore: Galaxy S9 64.8/100, OnePlus One 65.0/100.

What are the main battery and display differences between Galaxy S9 and OnePlus One?

Galaxy S9 has a 5.8-inch display and 3000 mAh battery. OnePlus One has a 5.5-inch display and 3100 mAh battery.

How do Galaxy S9 and OnePlus One compare for speed?

Galaxy S9 scores 64/100 for performance; OnePlus One scores 60/100.

Similar Smartphones

Galaxy S8
Samsung

Galaxy S8

iPhone 13
Apple

iPhone 13

Pixel 3
Google

Pixel 3

OnePlus Nord N300 5G TD-LTE US 64GB CPH2389 (BBK 2339)
Oneplus

OnePlus Nord N300 5G TD-LTE US 64GB CPH2389 (BBK 2339)

Xiaomi Redmi A3x 4G Standard Edition Global Dual SIM TD-LTE 64GB 24048RN6CG (Xiaomi Klein)
Xiaomi

Xiaomi Redmi A3x 4G Standard Edition Global Dual SIM TD-LTE 64GB 24048RN6CG (Xiaomi Klein)

BBK Vivo Y01 2022 Standard Edition Dual SIM TD-LTE V3 NP BD KH VN 32GB
Vivo

BBK Vivo Y01 2022 Standard Edition Dual SIM TD-LTE V3 NP BD KH VN 32GB

A3s Dual SIM TD-LTE VN Version 2 16GB CPH1803 / A2 Pro
Oppo

A3s Dual SIM TD-LTE VN Version 2 16GB CPH1803 / A2 Pro

Motorola Razr (2019)
Motorola

Motorola Razr (2019)

More Smartphones comparisons

vs

Galaxy S9 vs Galaxy S8

Compare →
vs

OnePlus One vs Galaxy S8

Compare →
vs

Galaxy S9 vs iPhone 13

Compare →
vs

OnePlus One vs iPhone 13

Compare →
vs

Galaxy S9 vs Pixel 3

Compare →
vs

OnePlus One vs Pixel 3

Compare →
vs

Galaxy S9 vs OnePlus Nord N300 5G TD-LTE US 64GB CPH2389 (BBK 2339)

Compare →
vs

OnePlus One vs OnePlus Nord N300 5G TD-LTE US 64GB CPH2389 (BBK 2339)

Compare →

Gear for the Galaxy S9

All Amazon Finds →
Amazon FindsAirPods Pro 3 vs Galaxy Buds 4 Pro vs BoseWhich flagship earbuds fit your phone.See the picks Amazon FindsApple Watch vs Galaxy Watch vs Pixel WatchThe right watch for your phone.See the picks Amazon FindsBest power banksFast charging for a full day out.See the picks Amazon FindsBest USB-C chargersSmall GaN bricks that charge fast.See the picks

Related articles

All articles →
Samsung Galaxy Z Fold6 vs. Google Pixel 9 Pro Fold vs. Honor Magic V3 vs. OnePlus Open: The Definitive Flagship Foldable Architecture, Hinge Engineering, Crease-Free Displays, and Camera Benchmark Showdown (2026)Flagship Showdown
14 min read

Samsung Galaxy Z Fold6 vs. Google Pixel 9 Pro Fold vs. Honor Magic V3 vs. OnePlus Open: The Definitive Flagship Foldable Architecture, Hinge Engineering, Crease-Free Displays, and Camera Benchmark Showdown (2026)

An exhaustive microarchitectural breakdown, hinge mechanism durability, crease analysis, dual-screen multitasking benchmarks, and periscope camera shootout across the 4 premier book-style foldables of 2026.

Read →
Samsung Odyssey Neo G9 57" vs. Odyssey OLED G9 49" vs. ASUS ROG Swift PG49WCD vs. LG UltraGear 45GS96QB: The Definitive Flagship Super Ultrawide & Curved Gaming Monitor Architecture, Dual 4K 7680x2160 vs. Dual QHD QD-OLED, DisplayPort 2.1 Bandwidth (UHBR 13.5/20), 240Hz Refresh Rates, 2,392 Mini-LED Local Dimming Zones vs. Infinite Contrast OLED, KVM Multitasking, and GPU Driveability Shootout (2026)Flagship Monitor Shootout
16 min read

Samsung Odyssey Neo G9 57" vs. Odyssey OLED G9 49" vs. ASUS ROG Swift PG49WCD vs. LG UltraGear 45GS96QB: The Definitive Flagship Super Ultrawide & Curved Gaming Monitor Architecture, Dual 4K 7680x2160 vs. Dual QHD QD-OLED, DisplayPort 2.1 Bandwidth (UHBR 13.5/20), 240Hz Refresh Rates, 2,392 Mini-LED Local Dimming Zones vs. Infinite Contrast OLED, KVM Multitasking, and GPU Driveability Shootout (2026)

A comprehensive architectural shootout of the world's most advanced curved super ultrawide monitors. We compare Samsung's 57-inch Dual 4K Quantum Mini-LED titan against 49-inch Gen 2 QD-OLEDs and LG's 45-inch 800R curved WOLED across DisplayPort 2.1 bandwidth tunneling, 240Hz motion clarity, text rendering subpixel matrices, multi-window KVM workflows, and GPU horsepower requirements.

Read →
Pixel 10a Now $599 vs Galaxy A57 & iPhone 17e: Still Worth It?Tech News
6 min read

Pixel 10a Now $599 vs Galaxy A57 & iPhone 17e: Still Worth It?

Google quietly raised the Pixel 10a from $499 to $599 in early October, and Samsung pushed the Galaxy A57 up to $599.99 the same week. That puts three "budget" phones at the same $599 starting price as the iPhone 17e. Here is what changed, how the three compare, and which one makes sense now.

Read →