BeastCompare

iPhone 18 Pro Max vs OnePlus 15: Which One Should You Buy?

OnePlus 15 edges ahead with a BeastScore of 92.9/100 — but the right choice depends on what matters to you.

Head-to-head
Comparing 2 devicesSwipe ⇄
Apple · 2026

iPhone 18 Pro Max

iPhone 18 Pro Max
93/ 100
Launch price$1,499
Oneplus · 2025

OnePlus 15

OnePlus 15
93/ 100
Launch price$899
Head-to-head

OnePlus 15 wins 4 of 8 categories

Here's exactly where each phone is stronger.

iPhone 18 Pro Max
iPhone 18 Pro Max
3 wins
OnePlus 15
OnePlus 15
4 wins
At a glance

Bigger shape = better phone.

SpeedCameraSelfieBatteryDisplayConnectivitySecurityValue
iPhone 18 Pro MaxOnePlus 15
Category winners

Scores out of 100. How we score

  • SpeediPhone 18 Pro Max
    96
    95
  • CameraiPhone 18 Pro Max
    94
    91
  • VideoNot enough data
  • SelfieOnePlus 15
    76
    88
  • BatteryOnePlus 15
    94
    100
  • DisplayOnePlus 15
    95
    98
  • ConnectivityiPhone 18 Pro Max
    100
    95
  • SecurityTie
    100
    100
  • ValueOnePlus 15
    58
    68
Key differences
  • OnePlus 15 has the bigger battery7,300 mAh vs 5,567 mAh
  • OnePlus 15 charges faster120W vs 45W
  • OnePlus 15 has a sharper main camera50 MP vs 48 MP
  • OnePlus 15 has a smoother screen165 Hz vs 120 Hz
  • iPhone 18 Pro Max has the bigger screen6.9" vs 6.78"
  • OnePlus 15 is lighter211 g vs 249 g
  • OnePlus 15 launched cheaper$899 vs $1,499
  • OnePlus 15 has a sharper selfie camera32 MP vs 18 MP
  • iPhone 18 Pro Max has newer Bluetooth6 vs 5.4
  • OnePlus 15 has more RAM16 GB vs 12 GB
  • iPhone 18 Pro Max has the faster chipApple A20 Pro (2 nm) vs Snapdragon 8 Elite Gen 5
  • iPhone 18 Pro Max can text for help by satelliteYes vs No
See all specs ↓

Why buy each phone

Swipe ⇄
Reasons to buy iPhone 18 Pro Max
  • ✓48 MP main camera
  • ✓6.9" display at 120 Hz
Reasons to buy OnePlus 15
  • ✓38 g lighter (211 g vs 249 g), easier to hold
  • ✓$600 cheaper at launch ($899 vs $1,499)
  • ✓Bigger 7,300 mAh battery (+1,733 mAh)

Full specifications

Swipe ⇄
SpecificationiPhone 18 Pro MaxOnePlus 15
1. Display & Screen🏆 OnePlus 15 Wins Display
Screen typeLTPO Super Retina XDR OLED, 120Hz, HDR10, Dolby VisionLTPO AMOLED
Screen Size6.9"6.78"
Resolution & Density1320 x 2868 pixels (19.5:9 ratio) (460 ppi)2772x1272 (450 ppi)
Refresh Rate120 Hz ProMotion165 Hz adaptive
Brightness1000 nits (typ), 1600 nits (HBM), 3000 nits (peak)1,800 nits peak
Screen ProtectionCeramic Shield 2, Anti-reflective coating, Always-On displayNot listed
2. Platform & Performance🏆 iPhone 18 Pro Max Wins Performance
Chipset / ProcessorApple A20 Pro (2 nm) (2nm)Snapdragon 8 Elite Gen 5 (3nm)
CPU CoresHexa-core (2x High Performance + 4x Efficiency)Not listed
GPU GraphicsApple GPU (7-core graphics)Adreno 840
Operating SystemiOS 27Android 16
3. Memory & Storage
RAM Memory12GB LPDDR5X16 GB LPDDR
Internal Storage256GB / 512GB / 1TB / 2TB256GB / 512GB / 1024GB
Storage SpeedNVMe fast flashNot listed
Card SlotNoNo
4. Main Camera Optics🏆 iPhone 18 Pro Max Wins Camera
Primary Camera48 MP, f/1.5, 24mm (wide), 1/1.28", 1.22µm, OIS, Dual pixel PDAF, Sensor-shift OIS (gen 2)50 MP, f/1.8, OIS, Sony LYT-808
Telephoto Zoom48 MP (4x optical zoom), f/2.8, 100mm (periscope telephoto), OIS50 MP (3.5x optical zoom), f/2.6, OIS
Ultrawide Camera48 MP, f/2.2, 13mm, 120˚ (ultrawide)50 MP, f/2
LiDAR / DepthTOF 3D LiDAR scanner (depth sensing & night portrait)None
5. Video
Main Camera Video
4K@24/25/30/60/100/120fps1080p@240fps10-bit HDRDolby Vision HDR (up to 120fps)ProRes RAWApple Log 2Spatial 3D video & stereo sound
Not listed
Front Video
4K@24/25/30/60fps1080p@120fpsgyro-EISDolby Vision HDR
Not listed
6. Selfie Camera
Selfie Lens18 MP, f/1.9, 20mm (ultrawide multi-aspect)32 MP, f/2.4
7. Body & Dimensions🏆 OnePlus 15 Lightest Chassis
Dimensions163.4 x 78 x 8.8 mm (6.43 x 3.07 x 0.35 in)161.4 x 76.7 x 8.1 mm
Weight249 g (8.78 oz)211 g
Build MaterialsGlass front (Ceramic Shield 2), aluminum frame, aluminum/glass backNot listed
SIM TypeNano-SIM + eSIM + dual eSIM supportNot listed
Water ResistanceIP68 dust/water resistant (up to 6m for 30 min)IP68/IP69K
8. Battery & Charging🏆 OnePlus 15 Wins Battery
Battery Capacity5,567 mAh7,300 mAh
Wired Fast Charging45W wired fast charging120W wired fast charging
Wireless Charging25W wireless charging50W wireless charging
Reverse ChargingNot listedNot listed
9. Sound & Audio
LoudspeakerYes, with stereo speakers (Spatial Audio)Not listed
3.5mm Headphone JackNoNo
10. Connectivity
Wi-Fi StandardWi-Fi 7 (802.11be, tri-band, hotspot)Wi-Fi 7
BluetoothBluetooth 6.0, A2DP, LE5.4
USB Port & SpeedUSB Type-C 3.2 Gen 2 (up to 10Gbps), DisplayPort video outUSB-C 3.2
NFCYes (Apple Pay Visa, MasterCard, AMEX certified)Yes (contactless payment)
11. Sensors & Security
SensorsFace ID, LiDAR scanner, accelerometer, gyro, proximity, compass, barometerNot listed
Satellite FeaturesEmergency SOS, Messages and Find My via satelliteNot listed
12. Colors & Overview
ColorsBlack, Silver, Glacier, BurgundyNot listed
Launch Price$1,499$899
Our verdict

OnePlus 15 wins — BeastScore 92.9/100

The OnePlus 15 is the better pick for most people thanks to its bigger battery (7,300 mAh vs 5,567 mAh) and faster charging (120W vs 45W). The iPhone 18 Pro Max is worth a look if you prefer its bigger screen (6.9" vs 6.78").

Buy iPhone 18 Pro Max if you want

Brighter screen: 3,000 nits vs 1,800 nits

Buy OnePlus 15 if you want

Larger battery: 7,300 mAh vs 5,567 mAh · Faster wired charging: 120W vs 45W

Common questions

Which is better: iPhone 18 Pro Max or OnePlus 15?

The OnePlus 15 is the better pick for most people thanks to its bigger battery (7,300 mAh vs 5,567 mAh) and faster charging (120W vs 45W). The iPhone 18 Pro Max is worth a look if you prefer its bigger screen (6.9" vs 6.78"). BeastScore: iPhone 18 Pro Max 92.8/100, OnePlus 15 92.9/100.

What are the main battery and display differences between iPhone 18 Pro Max and OnePlus 15?

iPhone 18 Pro Max has a 6.9-inch display and 5567 mAh battery. OnePlus 15 has a 6.78-inch display and 7300 mAh battery.

How do iPhone 18 Pro Max and OnePlus 15 compare for speed?

iPhone 18 Pro Max scores 96/100 for performance; OnePlus 15 scores 95/100.

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