OnePlus 15 vs Apple iPhone 18 Pro Max
The OnePlus 15 scores 9.4 in our rating, and the Apple iPhone 18 Pro Max scores 9.2. The OnePlus 15 leads in display, battery, design and value for money, while the Apple iPhone 18 Pro Max is ahead in performance and camera. At launch in the US, the OnePlus 15 cost $399.01 less ($899.99 vs $1,299). The Apple iPhone 18 Pro Max is the newer phone, announced Sep 9, 2026.
Key differences
Why choose the OnePlus 15
- Bigger battery 7,300 mAh vs 5,567 mAh
- Silicon-carbon battery
- Higher refresh rate 165 Hz vs 120 Hz
- Better water resistance IP68 + IP69K vs IP68
- Lower launch price $899.99 vs $1,299
- Faster wireless charging 50 W vs 25 W
Why choose the Apple iPhone 18 Pro Max
- Bigger screen 6.9 inches vs 6.78 inches
- Longer optical zoom 4× vs 3.5×
- Newer model Sep 9, 2026 vs Oct 27, 2025
- More storage 256 GB / 512 GB / 1 TB / 2 TB vs 256 GB / 512 GB
- Higher screen resolution 1320 × 2868 px vs 1272 × 2772 px
- Sharper display 460 ppi vs 450 ppi
PhoneRanked scores
Calculated from specs, relative to phones from the same year and price range. How we rate phones
Spec
OnePlus 15Apple iPhone 18 Pro Max
Overall
9.4
9.2
Display
8.9
8.5
Performance
9.0
9.4
Camera
8.4
8.7
Battery
8.5
7.7
Design
8.8
8.3
Software support
7.4
7.4
Value for money
7.6
6.6
Display
Spec
OnePlus 15Apple iPhone 18 Pro Max
Size
6.78 inches
6.9 inches
Type
OLED
OLED, Super Retina XDR
Resolution
1272 × 2772 px
1320 × 2868 px
Pixel density
450 ppi
460 ppi
Refresh rate
165 Hz
120 Hz
Adaptive refresh
✓ Yes
✓ Yes
Peak brightness
—
3,000 nits
HDR
HDR10+, HDR Vivid
HDR10, HDR10+, Dolby Vision
Protection
Gorilla Glass Victus 2
Ceramic Shield 2
Performance
Spec
OnePlus 15Apple iPhone 18 Pro Max
Process
3 nm
2 nm
Max CPU clock
4.61 GHz
4.93 GHz
GPU
Adreno 840
Apple 7-core GPU
RAM
12 GB / 16 GB
12 GB
Storage
256 GB / 512 GB
256 GB / 512 GB / 1 TB / 2 TB
Storage type
UFS 4.1
—
microSD slot
✕ No
✕ No
Cameras
Spec
OnePlus 15Apple iPhone 18 Pro Max
Main camera
50 MP, f/1.8
48 MP, f/1.48
Optical stabilization
✓ Yes
✓ Yes
Ultrawide
50 MP
48 MP
Telephoto
50 MP, 3.5× optical
48 MP, 4× optical, periscope
Optical zoom
3.5×
4×
Rear cameras
3
3
Rear video
8K@30
4K@120
Front camera
32 MP
18 MP
Front video
4K@60
4K@60
Battery and charging
Spec
OnePlus 15Apple iPhone 18 Pro Max
Capacity
7,300 mAh
5,567 mAh
Battery type
Silicon-carbon
Li-Ion
Wired charging
120 W
—
Wireless charging
50 W
25 W
Reverse wireless
✕ No
✕ No
Charger in box
✓ Yes
✕ No
Design and build
Spec
OnePlus 15Apple iPhone 18 Pro Max
Dimensions
161.42 × 76.67 × 8.1 mm
163.4 × 78 × 8.75 mm
Thickness
8.1 mm
8.75 mm
Weight
211 g
249 g
Form factor
Bar
Bar
Frame
—
Aluminum
Back
Fiberglass
Glass
Water resistance
IP68 + IP69K
IP68
Fingerprint
Under-display ultrasonic
None
3D face unlock
✕ No
✓ Yes
SIM
Dual Nano-SIM + eSIM
eSIM only
Colors
Sand Storm, Infinite Black, Ultra Violet
Black, Silver, Glacier, Burgundy
Connectivity and features
Spec
OnePlus 15Apple iPhone 18 Pro Max
5G
✓ Yes
✓ Yes
Wi-Fi
Wi-Fi 7
Wi-Fi 7
Bluetooth
6.0
6.0
USB
USB-C 3.x
USB-C 3.x
NFC
✓ Yes
✓ Yes
3.5 mm jack
✕ No
✕ No
Stereo speakers
✓ Yes
✓ Yes
Satellite
✕ No
✓ Yes
IR blaster
✓ Yes
✕ No
Software
Spec
OnePlus 15Apple iPhone 18 Pro Max
OS at launch
Android 16
iOS 27
Interface
OxygenOS 16
—
OS updates
4 years
—
Security updates
6 years
5 years
Launch and price
Spec
OnePlus 15Apple iPhone 18 Pro Max
Announced
Oct 27, 2025
Sep 9, 2026
Released
—
Sep 18, 2026
Status
Released
Released
US launch price
$899.99
$1,299
Green marks the stronger value in a row. Specs come from official manufacturer data, cross-checked with established tech media; each phone page lists its sources. Report an error
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