Phone comparison
Apple iPhone 15 Pro Max vs Apple iPhone 18 Pro Max
Short answer
The iPhone 18 Pro Max, if you're upgrading from the 15 Pro Max.
The iPhone 18 Pro Max lasts much longer on a charge and charges far faster than the iPhone 15 Pro Max. It also has a bigger, brighter screen and a longer zoom. The trade-off is weight, since the newer phone is heavier and thicker. Reviewers who addressed three-year upgraders mostly said yes.
Updated Oct 16, 2026
Get it if
you are coming from an iPhone 15 Pro Max or older, shoot a lot of video, or want the longest battery life and fastest charging in an iPhone.
Skip it if
you dislike a heavy phone, or you own a newer Pro model, since reviewers said those owners should wait.
What reviewers found
Topic by topic
Each row is something review sites agreed on. Open a row for the details.
Battery life
iPhone 18 Pro Max has the edge
The 18 Pro Max lasts far longer. In GSMArena's battery test it ran 19 hours 20 minutes of active use, against 12 hours 58 minutes for the 15 Pro Max. Reviewers found it gets through a heavy day with plenty left.
4 sites agree: The Guardian, The Shortcut and 2 more
Charging
iPhone 18 Pro Max has the edge
Camera
iPhone 18 Pro Max has the edge
The 18 Pro Max has three 48MP cameras and a 4x optical telephoto. Reviewers found the variable aperture on the main camera helps in low light but changes little otherwise. Most called its video the best on a phone.
5 sites agree: The Guardian, Stuff and 3 more
Display
iPhone 18 Pro Max has the edge
The 18 Pro Max has a larger 6.9-inch screen and higher peak brightness. Both phones run at 120Hz. Reviewers found the newer screen very bright and crisp.
4 sites agree: The Guardian, Trusted Reviews and 2 more
Build
iPhone 15 Pro Max has the edge
The 15 Pro Max is lighter at 221g and thinner at 8.25mm. The 18 Pro Max is 249g and 8.8mm, and many reviewers called it heavy and hard to use one-handed.
6 sites agree: The Guardian, Stuff and 4 more
Prices
Where to buy
The lowest prices we track today.
Already own one?
Is it worth switching?
iPhone 18 Pro Max
Own a 15 Pro Max or older: the 18 Pro Max is a clear step up, with a longer-lasting battery, faster charging and a longer zoom.
Spec data
How they compare
Choosing the cheaper iPhone 15 Pro Max means giving up most on: Camera zoom, Battery life
iPhone 15 Pro Max
iPhone 18 Pro Max
Price (MSRP)
$1,199
$1,299
OS
iOS
iOS
Processor
Apple A17 Pro Hexa-core
Apple A20 Pro Hexa-core
Camera zoom
—
4×
Battery life
12h 58m
GSMArena Active Use
19h 20m
GSMArena Active Use
Wired charging
—
60W
Wireless charging
15W
25W
Display
Color, 120Hz
2000 nits peak
Color, 120Hz
3000 nits peak
Software support
—
—
Repairability
7/10
iFixit
7/10
iFixit
Weight
221g (7.8 oz)
249g (8.8 oz)
Fingerprint
No
No
Highlighted cells indicate the stronger value where a clear winner exists.
Spec data
How they compare
Choosing the cheaper iPhone 15 Pro Max means giving up most on: Camera zoom, Battery life
iPhone 15 Pro Max
iPhone 18 Pro Max
Price (MSRP)
$1,199
Price (MSRP)
$1,299
OS
iOS
OS
iOS
Processor
Apple A17 Pro Hexa-core
Processor
Apple A20 Pro Hexa-core
Camera zoom
—
Camera zoom
4×
Battery life
12h 58m
GSMArena Active Use
Battery life
19h 20m
GSMArena Active Use
Wired charging
—
Wired charging
60W
Wireless charging
15W
Wireless charging
25W
Display
Color, 120Hz
2000 nits peak
Display
Color, 120Hz
3000 nits peak
Software support
—
Software support
—
Repairability
7/10
iFixit
Repairability
7/10
iFixit
Weight
221g (7.8 oz)
Weight
249g (8.8 oz)
Fingerprint
No
Fingerprint
No
Highlighted cells indicate the stronger value where a clear winner exists.
iPhone 15 Pro Max
iPhone 18 Pro Max
Released
Sep 2023
Sep 2026
Announced
Sep 2023
Sep 2026
Price tier
Flagship
Flagship
Also Known As
—
Apple A3473, A3716
Processor
Apple A17 Pro Hexa-core
Apple A20 Pro Hexa-core
CPU Speed
3780MHz
4900MHz
RAM
8GB
12GB
Storage
256/512/ 1000 GB
256/512 GB, 1/2 TB
Price (USD)
$1,199
$1,299
Regions
USA, Canada
USA, Canada
Regional Variants
—
—
Warranty
1 Year
1 Year
Accessories
Manual, Data Cable
Manual, Data Cable
OS
iOS
iOS
OS at Launch
17
27
Current Version
27.0.1
27.0.1
OS Updates
Not confirmed
Not confirmed
Security Updates
Not confirmed
Not confirmed
Custom UI
—
—
Type
Color
Color
Technology
OLED
OLED
Size
6.7"
6.9"
Resolution
1290 × 2796
1320 × 2868
Pixel Density
460 ppi
460 ppi
Colors
16.7 million
16.7 million
Refresh Rate
120Hz
120Hz
Touch Sampling Rate
240Hz
—
Peak Brightness
2000 nits
3000 nits
Always On Display
DC Dimming
DisplayMate Grade
Not tested
Not tested
Multi-touch
Fingerprint Resistant
Sensors
Ambient Light, Proximity, Motion / Accelerometer, Gyroscope, Digital Compass
Ambient Light, Proximity, Motion / Accelerometer, Gyroscope, Digital Compass
Additional Features
Capacitive touchscreen, HDR10, Dolby Vision
Capacitive touchscreen, HDR10, Dolby Vision, Ceramic Shield 2, Anti-reflective coating
Secondary Display
Type
—
—
Size
—
—
Resolution
—
—
Color Type
—
—
Colors
—
—
Main Camera
48MP f/1.8 (Wide)
48MP f/1.5-4.0 (Wide)
Camera 2
12MP f/2.8 (Periscope telephoto)
48MP f/2.8 (Periscope telephoto)
Camera 3
12MP f/2.2 (Ultrawide)
48MP f/2.8 (Ultrawide)
Camera 4
TOF 3D LiDAR scanner
TOF 3D LiDAR scanner
Flash
Yes (Dual LED)
Yes (Dual LED)
Sensor Name
—
Sony IMX 905
Sensor Size
1/1.28"
1/1.28"
Focal Length (Main)
24mm
24mm
Focal Length (Ultrawide)
13mm
13mm
Focal Length (Telephoto)
77mm
100mm
Optical Zoom
—
4
Digital Zoom
—
40
Video Resolution
Ultra HD (3840 x 2160 pixels)
Ultra HD (3840 x 2160 pixels)
Video FPS
60fps
120fps
Video Length
—
—
Video Formats
MPEG-4
MPEG-4
Features
Auto focus, Face detection, Geotagging, HDR, Panorama, Self-timer, Multi-shot, Effects, Image stabilization, ISO, Night mode
Auto focus, Face detection, Geotagging, HDR, Panorama, Self-timer, Multi-shot, Effects, Brightness control, Image stabilization, ISO, Night mode, Red-eye reduction, White balance
Additional Info
—
Dolby Vision HDR
Front Camera
Video Recording
Resolution
12MP f/1.9 (Wide)
18MP f/1.9 (Ultrawide)
Video Resolution
Ultra HD (3840 x 2160 pixels)
Ultra HD (3840 x 2160 pixels)
Video FPS
60fps
60fps
Zoom
Optical Zoom
—
—
Digital Zoom
—
—
Features
—
—
Additional Info
—
—
DxOMark Overall v5
154
—
DxOMark Photo
153
—
DxOMark Video
158
—
DxOMark Zoom
142
—
DxOMark Bokeh
80
—
DxOMark Selfie
149
—
DxOMark Rank
#28
—
DxOMark Overall
—
—
Chip
Apple A17 Pro Hexa-core
Apple A20 Pro Hexa-core
Process Node
3nm
2nm
GPU
Apple GPU (6-core graphics)
Apple GPU
RAM
8GB
12GB
Storage
256/512/ 1000 GB
256/512 GB, 1/2 TB
AnTuTu v11
1,421,780
3,463,072
Geekbench 6 Single
2,974
4,735
Geekbench 6 Multi
7,533
12,794
Geekbench 5 Single
—
—
Geekbench 5 Multi
—
—
Capacity
4,441 mAh
5,567 mAh
Type
Lithium Polymer (Li-Pol)
Lithium-Ion (Li-Ion)
Removable
Fast Charging
—
60W
Wireless Charging
15W
25W
Comes with Charger
Talk Time
29h 00m
—
Video Playback
29h 00m
45h 00m
Internet (WiFi)
—
—
Internet (Cellular)
—
—
Standby
—
—
Mixed Usage
—
30h 00m
Charge Time 0–100%
93 min
55 min
Charged in 30 Min
57%
81%
GSMArena Score
12h 58m
19h 20m
Battery Test Source
GSMArena v2.0 (current)
GSMArena v2.0 (current)
Battery Life (Call)
18h 15m
31h 23m
Battery Life (Video)
18h 20m
26h 12m
Battery Life (Web)
11h 43m
17h 13m
Battery Life (Gaming)
8h 16m
12h 09m
Wi-Fi
Wi-Fi a/b/g/n/ac/ax/6e
Wi-Fi a/b/g/n/ac/ax/be
WiFi Version
Wi-Fi 6E (802.11ax — adds 6GHz)
Wi-Fi 7 (802.11be)
Bluetooth
5.3
6
Bluetooth Profiles
A2DP, AVRCP, OPP/FTP, HID, HFP, HSP, PAN
A2DP, AVRCP, BPP, OPP/FTP, HID, HFP, HSP
Bluetooth Codecs
SBC, AAC
AAC
USB Type
USB Type-C
USB Type-C
USB OTG
USB Speed
USB 3.2 Gen 2 (10 Gbps)
USB 3.2 Gen 2 (10 Gbps)
NFC
Infrared
Headset Jack
Mobile Hotspot
GPS
GPS Type
A-GPS, GLONASS, Galileo, BeiDou, QZSS
A-GPS, GLONASS, Galileo, BeiDou
UWB
Satellite
Two-way messaging
Two-way messaging
Memory Expansion
Expansion Type
—
—
Expansion Capacity
—
—
Networks
GPRS, EDGE, HSPA+, LTE, 5G
EDGE, HSPA+, LTE, 5G
Data
5G, 4G/LTE
5G, 4G/LTE
VoLTE
WiFi Calling
Physical SIM
Nano-SIM
None
Dual SIM
eSIM
Push to Talk
Data Tethering
Form Factor
Bar
Bar
Material
Titanium
Aluminum
Frame Material
Titanium
Aluminum
Rear Material
Glass — Other
Aluminum
Colors
Black Titanium, White Titanium, Blue Titanium, Natural Titanium
Black, Silver, Glacier, Burgundy
Dimensions
15.99 × 7.67 × 0.825 cm (6.3 × 3.02 × 0.32 in)
16.34 × 7.8 × 0.88 cm (6.43 × 3.07 × 0.35 in)
Weight
221g
249g
IP Rating
IP68
IP68
Water Resistance
Water Resistant
Water Resistant
Fingerprint Sensor
No
No
Rugged Design
iFixit Score
7/10
7/10
Parts Availability
OEM + third-party (best)
OEM + third-party (best)
External Speakers
Stereo
Stereo
Noise Cancellation
Dolby Atmos
Hi-Res Audio
FM Radio
GSMArena Loudness
Good (-28 to -30 LUFS)
Very Good (-26 to -28 LUFS)
Speaker Loudness
-26.4 LUFS
-25 LUFS
Touchscreen
Navigation Type
Touchscreen
Touchscreen
Keyboard Type
Touchscreen
Touchscreen
Home Key
Sleep/Wake Key
External Volume
SAR Head
1.09 W/kg
—
SAR Body
1.13 W/kg
—
Hearing Aid Compatible
TTY/TDD
Additional Information
—
—
Additional Comments
—
—
Manual
—
—
Quick Start Guide
—
—
Specifications are sourced from manufacturers and third-party databases and may contain errors. Suggest a correction →
iPhone 15 Pro Max
iPhone 18 Pro Max
Released
Sep 2023
Released
Sep 2026
Announced
Sep 2023
Announced
Sep 2026
Price tier
Flagship
Price tier
Flagship
Also Known As
—
Also Known As
Apple A3473, A3716
Processor
Apple A17 Pro Hexa-core
Processor
Apple A20 Pro Hexa-core
CPU Speed
3780MHz
CPU Speed
4900MHz
RAM
8GB
RAM
12GB
Storage
256/512/ 1000 GB
Storage
256/512 GB, 1/2 TB
Price (USD)
$1,199
Price (USD)
$1,299
Regions
USA, Canada
Regions
USA, Canada
Regional Variants
—
Regional Variants
—
Warranty
1 Year
Warranty
1 Year
Accessories
Manual, Data Cable
Accessories
Manual, Data Cable
iPhone 15 Pro Max
iPhone 18 Pro Max
OS
iOS
OS
iOS
OS at Launch
17
OS at Launch
27
Current Version
27.0.1
Current Version
27.0.1
OS Updates
Not confirmed
OS Updates
Not confirmed
Security Updates
Not confirmed
Security Updates
Not confirmed
Custom UI
—
Custom UI
—
iPhone 15 Pro Max
iPhone 18 Pro Max
Type
Color
Type
Color
Technology
OLED
Technology
OLED
Size
6.7"
Size
6.9"
Resolution
1290 × 2796
Resolution
1320 × 2868
Pixel Density
460 ppi
Pixel Density
460 ppi
Colors
16.7 million
Colors
16.7 million
Refresh Rate
120Hz
Refresh Rate
120Hz
Touch Sampling Rate
240Hz
Touch Sampling Rate
—
Peak Brightness
2000 nits
Peak Brightness
3000 nits
Always On Display
Always On Display
DC Dimming
DC Dimming
DisplayMate Grade
Not tested
DisplayMate Grade
Not tested
Multi-touch
Multi-touch
Fingerprint Resistant
Fingerprint Resistant
Sensors
Ambient Light, Proximity, Motion / Accelerometer, Gyroscope, Digital Compass
Sensors
Ambient Light, Proximity, Motion / Accelerometer, Gyroscope, Digital Compass
Additional Features
Capacitive touchscreen, HDR10, Dolby Vision
Additional Features
Capacitive touchscreen, HDR10, Dolby Vision, Ceramic Shield 2, Anti-reflective coating
iPhone 15 Pro Max
iPhone 18 Pro Max
Secondary Display
Secondary Display
Type
—
Type
—
Size
—
Size
—
Resolution
—
Resolution
—
Color Type
—
Color Type
—
Colors
—
Colors
—
iPhone 15 Pro Max
iPhone 18 Pro Max
Main Camera
48MP f/1.8 (Wide)
Main Camera
48MP f/1.5-4.0 (Wide)
Camera 2
12MP f/2.8 (Periscope telephoto)
Camera 2
48MP f/2.8 (Periscope telephoto)
Camera 3
12MP f/2.2 (Ultrawide)
Camera 3
48MP f/2.8 (Ultrawide)
Camera 4
TOF 3D LiDAR scanner
Camera 4
TOF 3D LiDAR scanner
Flash
Yes (Dual LED)
Flash
Yes (Dual LED)
Sensor Name
—
Sensor Name
Sony IMX 905
Sensor Size
1/1.28"
Sensor Size
1/1.28"
Focal Length (Main)
24mm
Focal Length (Main)
24mm
Focal Length (Ultrawide)
13mm
Focal Length (Ultrawide)
13mm
Focal Length (Telephoto)
77mm
Focal Length (Telephoto)
100mm
Optical Zoom
—
Optical Zoom
4
Digital Zoom
—
Digital Zoom
40
Video Resolution
Ultra HD (3840 x 2160 pixels)
Video Resolution
Ultra HD (3840 x 2160 pixels)
Video FPS
60fps
Video FPS
120fps
Video Length
—
Video Length
—
Video Formats
MPEG-4
Video Formats
MPEG-4
Features
Auto focus, Face detection, Geotagging, HDR, Panorama, Self-timer, Multi-shot, Effects, Image stabilization, ISO, Night mode
Features
Auto focus, Face detection, Geotagging, HDR, Panorama, Self-timer, Multi-shot, Effects, Brightness control, Image stabilization, ISO, Night mode, Red-eye reduction, White balance
Additional Info
—
Additional Info
Dolby Vision HDR
iPhone 15 Pro Max
iPhone 18 Pro Max
Front Camera
Front Camera
Video Recording
Video Recording
Resolution
12MP f/1.9 (Wide)
Resolution
18MP f/1.9 (Ultrawide)
Video Resolution
Ultra HD (3840 x 2160 pixels)
Video Resolution
Ultra HD (3840 x 2160 pixels)
Video FPS
60fps
Video FPS
60fps
Zoom
Zoom
Optical Zoom
—
Optical Zoom
—
Digital Zoom
—
Digital Zoom
—
Features
—
Features
—
Additional Info
—
Additional Info
—
iPhone 15 Pro Max
iPhone 18 Pro Max
DxOMark Overall v5
154
DxOMark Overall v5
—
DxOMark Photo
153
DxOMark Photo
—
DxOMark Video
158
DxOMark Video
—
DxOMark Zoom
142
DxOMark Zoom
—
DxOMark Bokeh
80
DxOMark Bokeh
—
DxOMark Selfie
149
DxOMark Selfie
—
DxOMark Rank
#28
DxOMark Rank
—
DxOMark Overall
—
DxOMark Overall
—
iPhone 15 Pro Max
iPhone 18 Pro Max
Chip
Apple A17 Pro Hexa-core
Chip
Apple A20 Pro Hexa-core
Process Node
3nm
Process Node
2nm
GPU
Apple GPU (6-core graphics)
GPU
Apple GPU
RAM
8GB
RAM
12GB
Storage
256/512/ 1000 GB
Storage
256/512 GB, 1/2 TB
AnTuTu v11
1,421,780
AnTuTu v11
3,463,072
Geekbench 6 Single
2,974
Geekbench 6 Single
4,735
Geekbench 6 Multi
7,533
Geekbench 6 Multi
12,794
Geekbench 5 Single
—
Geekbench 5 Single
—
Geekbench 5 Multi
—
Geekbench 5 Multi
—
iPhone 15 Pro Max
iPhone 18 Pro Max
Capacity
4,441 mAh
Capacity
5,567 mAh
Type
Lithium Polymer (Li-Pol)
Type
Lithium-Ion (Li-Ion)
Removable
Removable
Fast Charging
—
Fast Charging
60W
Wireless Charging
15W
Wireless Charging
25W
Comes with Charger
Comes with Charger
Talk Time
29h 00m
Talk Time
—
Video Playback
29h 00m
Video Playback
45h 00m
Internet (WiFi)
—
Internet (WiFi)
—
Internet (Cellular)
—
Internet (Cellular)
—
Standby
—
Standby
—
Mixed Usage
—
Mixed Usage
30h 00m
Charge Time 0–100%
93 min
Charge Time 0–100%
55 min
Charged in 30 Min
57%
Charged in 30 Min
81%
GSMArena Score
12h 58m
GSMArena Score
19h 20m
Battery Test Source
GSMArena v2.0 (current)
Battery Test Source
GSMArena v2.0 (current)
Battery Life (Call)
18h 15m
Battery Life (Call)
31h 23m
Battery Life (Video)
18h 20m
Battery Life (Video)
26h 12m
Battery Life (Web)
11h 43m
Battery Life (Web)
17h 13m
Battery Life (Gaming)
8h 16m
Battery Life (Gaming)
12h 09m
iPhone 15 Pro Max
iPhone 18 Pro Max
Wi-Fi
Wi-Fi a/b/g/n/ac/ax/6e
Wi-Fi
Wi-Fi a/b/g/n/ac/ax/be
WiFi Version
Wi-Fi 6E (802.11ax — adds 6GHz)
WiFi Version
Wi-Fi 7 (802.11be)
Bluetooth
5.3
Bluetooth
6
Bluetooth Profiles
A2DP, AVRCP, OPP/FTP, HID, HFP, HSP, PAN
Bluetooth Profiles
A2DP, AVRCP, BPP, OPP/FTP, HID, HFP, HSP
Bluetooth Codecs
SBC, AAC
Bluetooth Codecs
AAC
USB Type
USB Type-C
USB Type
USB Type-C
USB OTG
USB OTG
USB Speed
USB 3.2 Gen 2 (10 Gbps)
USB Speed
USB 3.2 Gen 2 (10 Gbps)
NFC
NFC
Infrared
Infrared
Headset Jack
Headset Jack
Mobile Hotspot
Mobile Hotspot
GPS
GPS
GPS Type
A-GPS, GLONASS, Galileo, BeiDou, QZSS
GPS Type
A-GPS, GLONASS, Galileo, BeiDou
UWB
UWB
Satellite
Two-way messaging
Satellite
Two-way messaging
Memory Expansion
Memory Expansion
Expansion Type
—
Expansion Type
—
Expansion Capacity
—
Expansion Capacity
—
iPhone 15 Pro Max
iPhone 18 Pro Max
Networks
GPRS, EDGE, HSPA+, LTE, 5G
Networks
EDGE, HSPA+, LTE, 5G
Data
5G, 4G/LTE
Data
5G, 4G/LTE
VoLTE
VoLTE
WiFi Calling
WiFi Calling
Physical SIM
Nano-SIM
Physical SIM
None
Dual SIM
Dual SIM
eSIM
eSIM
Push to Talk
Push to Talk
Data Tethering
Data Tethering
iPhone 15 Pro Max
iPhone 18 Pro Max
Form Factor
Bar
Form Factor
Bar
Material
Titanium
Material
Aluminum
Frame Material
Titanium
Frame Material
Aluminum
Rear Material
Glass — Other
Rear Material
Aluminum
Colors
Black Titanium, White Titanium, Blue Titanium, Natural Titanium
Colors
Black, Silver, Glacier, Burgundy
Dimensions
15.99 × 7.67 × 0.825 cm (6.3 × 3.02 × 0.32 in)
Dimensions
16.34 × 7.8 × 0.88 cm (6.43 × 3.07 × 0.35 in)
Weight
221g
Weight
249g
IP Rating
IP68
IP Rating
IP68
Water Resistance
Water Resistant
Water Resistance
Water Resistant
Fingerprint Sensor
No
Fingerprint Sensor
No
Rugged Design
Rugged Design
iFixit Score
7/10
iFixit Score
7/10
Parts Availability
OEM + third-party (best)
Parts Availability
OEM + third-party (best)
iPhone 15 Pro Max
iPhone 18 Pro Max
External Speakers
Stereo
External Speakers
Stereo
Noise Cancellation
Noise Cancellation
Dolby Atmos
Dolby Atmos
Hi-Res Audio
Hi-Res Audio
FM Radio
FM Radio
GSMArena Loudness
Good (-28 to -30 LUFS)
GSMArena Loudness
Very Good (-26 to -28 LUFS)
Speaker Loudness
-26.4 LUFS
Speaker Loudness
-25 LUFS
iPhone 15 Pro Max
iPhone 18 Pro Max
Touchscreen
Touchscreen
Navigation Type
Touchscreen
Navigation Type
Touchscreen
Keyboard Type
Touchscreen
Keyboard Type
Touchscreen
Home Key
Home Key
Sleep/Wake Key
Sleep/Wake Key
External Volume
External Volume
iPhone 15 Pro Max
iPhone 18 Pro Max
SAR Head
1.09 W/kg
SAR Head
—
SAR Body
1.13 W/kg
SAR Body
—
Hearing Aid Compatible
Hearing Aid Compatible
TTY/TDD
TTY/TDD
iPhone 15 Pro Max
iPhone 18 Pro Max
Additional Information
—
Additional Information
—
Additional Comments
—
Additional Comments
—
Related Links
Manual
—
Manual
—
Quick Start Guide
—
Quick Start Guide
—
Specifications are sourced from manufacturers and third-party databases and may contain errors. Suggest a correction →
Third-party data
Testing & benchmarks
iPhone 15 Pro Max
iPhone 18 Pro Max
DxOMark v5
154
photo 153 · video 158
—
AnTuTu v10
1.42M
3.46M
GSMArena endurance
12h 58m
Active Use
19h 20m
Active Use
iFixit repairability
7/10
7/10
Third-party data
Testing & benchmarks
iPhone 15 Pro Max
iPhone 18 Pro Max
DxOMark v5
154
photo 153 · video 158
DxOMark v5
—
AnTuTu v10
1.42M
AnTuTu v10
3.46M
GSMArena endurance
12h 58m
Active Use
GSMArena endurance
19h 20m
Active Use
iFixit repairability
7/10
iFixit repairability
7/10
Physical comparison
Size & weight
Footprint · to scale
iPhone 15 Pro Max
6.3" × 3"
iPhone 18 Pro Max
6.4" × 3.1"
Thickness · to scale
iPhone 15 Pro Max
0.3"
iPhone 18 Pro Max
0.3"
iPhone 15 Pro Max
iPhone 18 Pro Max
Height
6.3" (159.9 mm)
6.4" (163.4 mm)
Width
3" (76.7 mm)
3.1" (78 mm)
Depth
0.3" (8.3 mm)
0.3" (8.8 mm)
Weight
221g (7.8 oz)
249g (8.8 oz)
Screen
6.7"
6.9"
Height
6.3" (159.9 mm)
Height
6.4" (163.4 mm)
Width
3" (76.7 mm)
Width
3.1" (78 mm)
Depth
0.3" (8.3 mm)
Depth
0.3" (8.8 mm)
Weight
221g (7.8 oz)
Weight
249g (8.8 oz)
Screen
6.7"
Screen
6.9"
Dimensions shown in inches (mm). Silhouettes are proportionally scaled for visual comparison.
Common questions
iPhone 15 Pro Max vs iPhone 18 Pro Max: FAQ
Should I upgrade from the iPhone 15 Pro Max to the iPhone 18 Pro Max?
Yes, for most owners. Reviewers who addressed it recommended the iPhone 18 Pro Max to anyone upgrading from an iPhone 15 Pro Max or older. The gains are longer battery life, much faster charging, a longer zoom and a faster chip. The main cost is a heavier, thicker phone.
Does the iPhone 18 Pro Max have better battery life than the iPhone 15 Pro Max?
Yes. The iPhone 18 Pro Max ran 19 hours 20 minutes in GSMArena's active use test, against 12 hours 58 minutes for the iPhone 15 Pro Max. Reviewers also found it lasts a day and a half or more in normal use.
Which is better, the iPhone 15 Pro Max or iPhone 18 Pro Max?
Based on aggregated critic reviews, the iPhone 15 Pro Max earns a Compass Score of 9.0 compared to 8.9 for the iPhone 18 Pro Max. That 0.1-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 iPhone 15 Pro Max or iPhone 18 Pro Max?
The iPhone 15 Pro Max launches at $1,199, which is $100 less than the iPhone 18 Pro Max at $1,299. Street prices shift after launch, so check current deals for both phones before deciding.
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Specifications sourced from manufacturers and third-party databases. Last updated October 2026. Suggest a correction →