OnePlus One vs Y31: Which One Should You Buy?

OnePlus One edges ahead with a BeastScore of 65.0/100 — but the right choice depends on what matters to you.

Head-to-head
Comparing 2 devicesSwipe ⇄
Oneplus · 2014

OnePlus One

OnePlus One
65/ 100
Launch price$299
Vivo · 2015

Y31

Y31
61/ 100
Launch pricePrice on request
Head-to-head

OnePlus One wins 2 of 7 categories

Here's exactly where each phone is stronger.

OnePlus One
OnePlus One
2 wins
Y31
Y31
0 wins
At a glance

Bigger shape = better phone.

SpeedCameraSelfieBatteryDisplayConnectivityValue
OnePlus OneY31
Category winners

Scores out of 100. How we score

  • SpeedTie
    60
    60
  • CameraOnePlus One
    68
    60
  • VideoNot enough data
  • SelfieTie
    40
    40
  • BatteryTie
    58
    58
  • DisplayTie
    62
    62
  • ConnectivityTie
    40
    40
  • SecurityNot enough data
  • ValueOnePlus One
    90
    68
Key differences
  • OnePlus One has the bigger battery3,100 mAh vs 2,100 mAh
  • OnePlus One has a sharper main camera13 MP vs 8 MP
  • OnePlus One has the bigger screen5.5" vs 4.7"
  • Y31 is lighter137 g vs 162 g
  • OnePlus One has a sharper selfie camera5 MP vs 2 MP
  • OnePlus One has newer Bluetooth4.1 vs 4
  • OnePlus One has more RAM3 GB vs 1 GB
See all specs ↓

Why buy each phone

Swipe ⇄
Reasons to buy OnePlus One
  • ✓Bigger 3,100 mAh battery (+1,000 mAh)
  • ✓13 MP main camera
  • ✓5.5" display at 60 Hz
Reasons to buy Y31
  • ✓25 g lighter (137 g vs 162 g), easier to hold
  • ✓8 MP main camera
  • ✓4.7" display

Full specifications

Swipe ⇄
SpecificationOnePlus OneY31
1. Display & Screen
Screen typeLTPS LCDIPS LCD capacitive touchscreen, 16M colors
Screen Size5.5"4.7"
Resolution & Density1920x1080 (401 ppi)720x1280 (312 ppi)
Refresh Rate60 HzNot listed
Brightness480 nits peakN/A
Screen ProtectionNot listedNot listed
2. Platform & Performance
Chipset / ProcessorNot listed Not listed
CPU CoresNot listedNot listed
GPU GraphicsNot listedNot listed
Operating SystemAndroid 4.4Android
3. Memory & Storage
RAM Memory3 GB LPDDR1 GB LPDDR
Internal Storage16GB / 64GB1GB / 8GB
Storage SpeedNot listedNot listed
Card SlotNoNo
4. Main Camera Optics🏆 OnePlus One Wins Camera
Primary Camera13 MP, f/2, Sony IMX2148 MP
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 Lens5 MP, f/22 MP
7. Body & Dimensions🏆 Y31 Lightest Chassis
Dimensions152.9 x 75.9 x 8.9 mmN/A
Weight162 g137 g
Build MaterialsNot listedNot listed
SIM TypeNot listedNot listed
Water ResistanceNot listedNot listed
8. Battery & Charging
Battery Capacity3,100 mAh2,100 mAh
Wired Fast Charging10W wired fast chargingN/A
Wireless ChargingNot listedNot listed
Reverse ChargingNot listedNot listed
9. Sound & Audio
LoudspeakerNot listedNot listed
3.5mm Headphone JackNoNo
10. Connectivity
Wi-Fi StandardWi-Fi 5Wi-Fi 802.11 b/g/n, hotspot
Bluetooth4.14.0, A2DP
USB Port & SpeedMicro-USB 2.0microUSB 2.0
NFCYes (contactless payment)Yes
11. Sensors & Security
SensorsNot listedNot listed
Satellite FeaturesNot listedNot listed
12. Colors & Overview
ColorsNot listedNot listed
Launch Price$299Price on request
Our verdict

OnePlus One wins — BeastScore 65.0/100

The OnePlus One is the better pick for most people thanks to its bigger battery (3,100 mAh vs 2,100 mAh) and sharper main camera (13 MP vs 8 MP). The Y31 is worth a look if you prefer its lighter body (137 g vs 162 g).

Buy OnePlus One if you want

Larger battery: 3,100 mAh vs 2,100 mAh · Larger display: 5.5" vs 4.7"

Buy Y31 if you want

Lighter: 137 g vs 162 g (25 g less)

Common questions

Which is better: OnePlus One or Y31?

The OnePlus One is the better pick for most people thanks to its bigger battery (3,100 mAh vs 2,100 mAh) and sharper main camera (13 MP vs 8 MP). The Y31 is worth a look if you prefer its lighter body (137 g vs 162 g). BeastScore: OnePlus One 65.0/100, Y31 60.8/100.

What are the main battery and display differences between OnePlus One and Y31?

OnePlus One has a 5.5-inch display and 3100 mAh battery. Y31 has a 4.7-inch display and 2100 mAh battery.

How do OnePlus One and Y31 compare for speed?

OnePlus One scores 60/100 for performance; Y31 scores 60/100.

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