✦ SIDE-BY-SIDE COMPARE

iPhone 15 vs ROG Phone 8 Pro vs Galaxy S25 Ultra: which is better?

iPhone 15, ROG Phone 8 Pro and Galaxy S25 Ultra compared side by side across 22 specs and 7 scored categories — every winner highlighted, so the right pick is obvious.

3 PRODUCTS · 22 SPECS · 7 SCORED CATEGORIES · LIVE RE-RANKING

COMPARING

3 / 4

SMARTPHONES

Add or remove products — every chart and spec row re-ranks live.

APPLE

iPhone 15

$799

BEST VALUE

ASUS

ROG Phone 8 Pro

$1,199

BEST FOR PERFORMANCE

← TOP PICK

SAMSUNG

Galaxy S25 Ultra

$1,199

BEST OVERALL

Add product

1 AVAILABLE

⚡ COMPARZONE VERDICT

The Galaxy S25 Ultra takes the overall win.

Highest composite at 9.2/10 — 0.5 ahead of the ROG Phone 8 Pro. Dead heat on battery. Scroll for the category-by-category breakdown.

View best price →

CATEGORY WINS · 7 SCOREDTIES SHOWN GREY

PERF

CAME

DISP

BATT

SOFT

VALU

DESI

iPhone 15×1

ROG Phone 8 Pro×1

Galaxy S25 Ultra×4

Apple iPhone 15BEST VALUE

Asus ROG Phone 8 ProBEST FOR PERFORMANCE

Samsung Galaxy S25 UltraBEST OVERALL

01 · SCORE RADAR

Performance profile

CLICK A PRODUCT TO ISOLATE ITS SHAPE

LARGEST GAPDesign — Galaxy S25 Ultra leads by 9.0

TIGHTESTBattery — dead heat between the top two

02 · CATEGORY BREAKDOWN

Category showdown

IPHONE 158 PROS25 ULTRA

PerformanceiROG Phone 8 Pro · +0.4

IPHONE 158.8

8 PRO9.8

S25 ULTRA9.4

CameraiGalaxy S25 Ultra · +0.9

IPHONE 158.5

8 PRO7.6

S25 ULTRA9.4

DisplayiGalaxy S25 Ultra · +0.2

IPHONE 157.8

8 PRO9.4

S25 ULTRA9.6

BatteryiTIED AT 9.2

IPHONE 158.0

8 PRO9.2

S25 ULTRA9.2

SoftwareiiPhone 15 · +0.2

IPHONE 159.2

8 PRO7.8

S25 ULTRA9.0

ValueiGalaxy S25 Ultra · +0.2

IPHONE 158.4

8 PRO7.9

S25 ULTRA8.6

DesigniGalaxy S25 Ultra · +9.0

IPHONE 150.0

8 PRO0.0

S25 ULTRA9.0

03 · VALUE MAP

Price vs performance

TOP-LEFT IS THE SWEET SPOT

SCORE PER $100 · RANKED

01iPhone 151.08BEST DEAL

02Galaxy S25 Ultra0.77

03ROG Phone 8 Pro0.73

Map shows current starting prices · trends show tracked street prices. Check live deals before deciding.

04 · THE FULL SHEET

Full specifications

22 SPECS · ALL SHOWN

SPECS

iPhone 15$7991W8.6

ROG Phone 8 Pro$1,1995W8.7

Galaxy S25 Ultra$1,1996W9.2

Battery CapacityMAHi

3,349 mAh

5,500 mAh← BEST +10%

5,000 mAh

Wired ChargingWi

20 W

65 W← BEST +44%

45 W

Wireless ChargingWiSAME

15 W

Main CameraMPi

48 MP

50 MP

200 MP← BEST +300%

Ultra-Wide CameraMPi

12 MP

13 MP

50 MP← BEST +285%

Telephotoi

None (2x in-sensor crop)

32MP 3x optical zoom

50MP 5x + 10MP 3x

Front CameraMPi

12 MP

32 MP← BEST +167%

12 MP

Max Videoi

4K@60fps

8K@24fps

8K 30fps

Wi-Fii

Wi-Fi 6

Wi-Fi 7

WeightGi

171 g← 22% lighter

225 g

218 g

Buildi

Aluminum frame, color-infused glass back

Aluminum frame, Gorilla Glass Victus 2

Titanium frame

Water ResistanceiSAME

IP68

Display SizeINi

6.1 in

6.78 in

6.9 in← BEST +2%

Display Typei

OLED Super Retina XDR

LTPO AMOLED

Dynamic AMOLED 2X LTPO

Refresh RateHZi

60 Hz

165 Hz← BEST +38%

120 Hz

Peak BrightnessNITSi

2,000 nits

2,500 nits

2,600 nits← BEST +4%

Chipseti

Apple A16 Bionic

Qualcomm Snapdragon 8 Gen 3

Snapdragon 8 Elite for Galaxy

RAMGBi

6 GB

24 GB← BEST +100%

12 GB

AnTuTu Scorei

1,450,000

2,100,000

2,700,000← BEST +29%

Operating Systemi

iOS 17 (upgradable)

Android 14, ROG UI

Android 15, One UI 7

OS Update SupportYRi

6 yr

2 yr

7 yr← BEST +17%

Storage Optionsi

128/256/512GB

512GB/1TB

256GB / 512GB / 1TB

ROW WINS

05 · WHICH ONE IS FOR YOU

Pick by persona

RE-RANKS LIVE AS YOU ADD OR REMOVE PRODUCTS

THE ALL-ROUNDER

Best overall

Galaxy S25 UltraSAMSUNG9.2

ALL GROUPSEQUAL WEIGHT

Best total score across weighted category factors.

RUNNER-UP · ROG Phone 8 Pro (8.7)

FOR VALUE SEEKERS

Best bang for buck

iPhone 15APPLE8.6

SCORE ÷ PRICELIVE PRICES

Strongest score-to-price ratio from the available price data.

RUNNER-UP · Galaxy S25 Ultra (0.8)

PRIORITY · DESIGN

Best for design

Galaxy S25 UltraSAMSUNG9.0

DESIGN WEIGHTEDCONF 86%

Best visible score in the design category group.

RUNNER-UP · iPhone 15 (0.0)

PRIORITY · CAMERA

Best for camera

Galaxy S25 UltraSAMSUNG9.4

CAMERA WEIGHTEDCONF 90%

Best visible score in the camera category group.

RUNNER-UP · iPhone 15 (8.5)

06 · BOTTOM LINE

Why pick each

STRENGTHS · AND ONE HONEST TRADE-OFF

#3APPLE0.0

iPhone 15

“The standard iPhone 15 brings the Dynamic Island, a 48MP main camera, and USB-C to Apple's mainstream flagship.”

Software 9.2

Performance 8.8

Wins Weight

Wins Wireless Charging

TRADE-OFFDisplay capped at 60Hz refresh

BEST VALUEBest price →

#2ASUS0.0

ROG Phone 8 Pro

“Asus's ROG Phone 8 Pro is a gaming powerhouse with a 165Hz AMOLED, Snapdragon 8 Gen 3, AirTrigger controls and a massive battery in a more m”

Performance 9.8

Display 9.4

Wins Battery Capacity

Wins Refresh Rate

TRADE-OFFLarge and heavy at over 225g

BEST FOR PERFORMANCEBest price →

#1SAMSUNG0.0

Galaxy S25 Ultra

“Large productivity flagship with a built-in S Pen, a brilliant 6.9-inch AMOLED, a 200MP camera, and flexible zoom.”

Display 9.6

Performance 9.4

Wins Main Camera

Wins AnTuTu Score

TRADE-OFFHeavy and large

BEST OVERALLBest price →

Still deciding? The Galaxy S25 Ultra is the safest pick.

COMPOSITE 9.2/10 · WINS 4 OF 7 CATEGORIES

Buy the winner →

Apple iPhone 15 vs Asus ROG Phone 8 Pro vs Samsung Galaxy S25 Ultra: which is best?

The Samsung Galaxy S25 Ultra is our overall pick, scoring 9.2/10 against 8.7/10 for the Asus ROG Phone 8 Pro — a 6% edge. Current starting prices span $799–$1,199. The score weighs category-specific smartphones attributes, spec wins, price signals, and data confidence — not sponsorships.

Samsung Galaxy S25 Ultra leads overall with a 9.2 total score.
Samsung Galaxy S25 Ultra wins 6 comparable specs with a 30% weighted win rate.
Asus ROG Phone 8 Pro has the strongest high-impact advantage in Battery Capacity.
Apple iPhone 15 has the best visible score-to-price balance based on available starting price.

Apple iPhone 158.6/10

The standard iPhone 15 brings the Dynamic Island, a 48MP main camera, and USB-C to Apple's mainstream flagship.

Pros

+ Excellent 48MP main camera with sharp 2x crop
+ USB-C finally replaces Lightning
+ Dynamic Island and bright OLED display
+ Long, reliable iOS update support

Cons

− Display capped at 60Hz refresh
− No dedicated telephoto lens
− Base 128GB storage feels tight for video shooters

Best for: Mainstream buyers wanting a balanced flagship · People upgrading from older iPhones · Users who value long software support

“If you want the iPhone experience without paying Pro prices, the iPhone 15 is the sweet spot. You give up the 120Hz ProMotion display, telephoto lens and the fastest chip, but you keep the excellent 48MP camera, USB-C, the Dynamic Island and Apple's…”

Asus ROG Phone 8 Pro8.7/10

Asus's ROG Phone 8 Pro is a gaming powerhouse with a 165Hz AMOLED, Snapdragon 8 Gen 3, AirTrigger controls and a massive battery in a more mainstream design.

Pros

+ Top-tier sustained gaming performance
+ Excellent 165Hz LTPO AMOLED display
+ Huge 5500mAh battery with 65W charging
+ Now includes IP68 and wireless charging

Cons

− Large and heavy at over 225g
− Cameras still trail leading camera flagships
− Expensive, especially the Pro configuration

Best for: Serious mobile gamers wanting sustained performance · Users who want the biggest battery and fastest screen · Power users wanting up to 24GB RAM

“The ROG Phone 8 Pro is the most well-rounded gaming phone yet. You get blistering, sustained performance, an outstanding high-refresh display, a giant battery and genuinely fun AirTrigger controls. This year Asus also fixed long-standing gaps by adding IP68…”

Samsung Galaxy S25 UltraWINNER 9.2/10

Large productivity flagship with a built-in S Pen, a brilliant 6.9-inch AMOLED, a 200MP camera, and flexible zoom.

Pros

+ Large, bright, high-resolution display
+ Most versatile camera and zoom system
+ Built-in S Pen for notes and control
+ Seven years of OS updates

Cons

− Heavy and large
− Premium price
− One UI can feel cluttered

Best for: Productivity and note-taking · Zoom photography · Big-screen media

“The most capable do-everything Android phone: huge bright display, the most flexible camera kit, S Pen productivity, and long support. It is heavy and pricey, and One UI can feel busy.”

Frequently asked questions

Which is best: Apple iPhone 15, Asus ROG Phone 8 Pro or Samsung Galaxy S25 Ultra?

By ComparZone's weighted scoring of category-specific smartphones specs, the Samsung Galaxy S25 Ultra scores highest overall (9.2/10, 0.5 points ahead of the Asus ROG Phone 8 Pro). It is the better all-round pick, but the right choice depends on your priorities — the spec table above shows exactly where each one wins.

What are the main differences between these smartphones?

The biggest measurable differences are Chipset, Battery Capacity, Main Camera. The grouped spec sheet above marks the winner of every comparable spec.

Can I compare other smartphones on ComparZone?

Yes — ComparZone supports dynamic comparison pages for any 2 to 4 smartphones from the same category, with verified specs, transparent scores, and live prices. See the related comparisons below or build your own from the category page.

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