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Sony Xperia Z4 Ultra
Sony Sony Xperia Z4 Ultra
2.4
Price TBA
View Details
Samsung Galaxy S25 Ultra
Samsung Samsung Galaxy S25 Ultra
256GB · 12GB RAM
4.1
From $1,299
View Details
★ Our Pick

Our Verdict

Analysis

Samsung Galaxy S25 Ultra has the bigger display.

Overall Winner
Samsung Galaxy S25 Ultra
Display Winner
Samsung Galaxy S25 Ultra
Performance Winner
Tie
Camera Winner
Tie
Battery Winner
Tie
Value Winner
Tie

Specifications Comparison

Feature Sony Xperia Z4 Ultra Samsung Galaxy S25 Ultra
Display size (in) 6.44 6.90
Charging (W) 18 45
Main camera (MP) 16.00 200.00
Chipset Qualcomm MSM8994 Snapdragon 810 (20 nm) Snapdragon 8 Elite
OS Android 5.0 (Lollipop) Android 15

Pros & Cons

Sony Xperia Z4 Ultra

Samsung Galaxy S25 Ultra

  • Brilliant display
  • Versatile camera system
  • Long update commitment
  • Productivity features
  • Premium pricing
  • Bulky design
  • Slow charging vs Chinese rivals

Every Spec, Side by Side

Specification
Sony
Sony Xperia Z4 Ultra
Samsung
Samsung Galaxy S25 Ultra
Battery 3 specs
Type
Li-Ion 4000 mAh, non-removable
Li-Ion 5000 mAh
Charging
18W wired, QC2
45W wired
Capacity
5000 mAh
Body 5 specs
Dimensions
-
162.8 x 77.6 x 8.2 mm
Weight
-
218 g
SIM
Nano-SIM
· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT· Nano-SIM + eSIM + eSIM (max 2 at a time) - USA· Nano-SIM + Nano-SIM - CN
 
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus
Build
Glass front (Corning Gorilla Armor 2), glass back (Gorilla Glass Victus 2), titanium frame (grade 5)
Connectivity 7 specs
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
4.0, A2DP, aptX
5.4, A2DP, LE
Positioning
GPS, GLONASS, BDS
GPS, GLONASS, BDS, GALILEO, QZSS
NFC
Yes
Yes
Radio
FM radio, RDS
No
USB
microUSB 2.0 (MHL TV-out), OTG
USB Type-C 3.2, DisplayPort 1.2, OTG
5G
Yes
Display 5 specs
Type
IPS LCD
Dynamic AMOLED 2X
Size
6.44 inches, 114.3 cm2
6.9 inches
Resolution
1080 x 1920 pixels, 16:9 ratio (~342 ppi density)
1440 x 3120 pixels
Protection
Shatter proof glass
Corning Gorilla Armor 2, Mohs level 6
 
Triluminos display X-Reality Engine
DX anti-reflective coating
Features 2 specs
Sensors
Accelerometer, gyro, proximity, compass, barometer
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 
ANT+
Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support
Launch 2 specs
Announced
Exp. announcement 2015, Q3
2025, January 22
Status
Cancelled
Available. Released 2025, February 03
Main Camera 4 specs
Single
16 MP, AF
Features
LED flash, HDR, panorama
Laser AF, Best Face, LED flash, auto-HDR, panorama
Video
Yes
8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Quad
200 MP + 50 MP + 50 MP + 10 MP
Memory 5 specs
Card slot
microSDXC (dedicated slot)
No
Internal
16GB 3GB RAM, 32GB 3GB RAM
256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 1TB 16GB RAM
 
eMMC 5.0
UFS 4.0
RAM
12GB
Storage
256GB
Misc 5 specs
Colors
Black, White
Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold
Models
SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS
SAR
1.26 W/kg (head)     0.64 W/kg (body)    
SAR EU
1.25 W/kg (head)     1.42 W/kg (body)    
Price
$ 806.08 / C$ 1,149.00 / £ 689.99 / € 840.00 / ₹ 99,990
Network 7 specs
Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA, LTE (CA), 5G
Technology
GSM / HSPA / LTE
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 1700 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
 
1, 2, 3, 4, 5, 7, 8, 17, 20
1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked
4G bands
1, 2, 3, 4, 5, 7, 8, 13, 17, 20
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International
5G bands
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International
Platform 4 specs
OS
Android 5.0 (Lollipop)
Android 15
Chipset
Qualcomm MSM8994 Snapdragon 810 (20 nm)
Snapdragon 8 Elite
CPU
Octa-core (4x1.5 GHz Cortex-A53 & 4x2.0 GHz Cortex-A57)
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Adreno 430
Adreno 830 (1200 MHz)
Selfie Camera 3 specs
Single
Yes
12 MP
Features
HDR, HDR10+
Video
4K@30/60fps, 1080p@30fps
Sound 3 specs
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
3.5mm jack
Yes
No
 
High-bitrate audio support
Eu Label 4 specs
Energy
Class B
Battery
44:54h endurance, 2000 cycles
Free fall
Class A (270 falls)
Repairability
Class C
Our Tests 4 specs
Performance
AnTuTu: 2207809 (v10) GeekBench: 9846 (v6) 3DMark: 6687 (Wild Life Extreme)
Display
1417 nits max brightness (measured)
Loudspeaker
-24.6 LUFS (Very good)
Battery
Active use score 14:49h

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Common Questions

Which phone is the best in this comparison?

Samsung Galaxy S25 Ultra has the bigger display.

How are the comparison winners decided?

We compare measurable specs (display size, battery capacity, RAM, charging, weight) and price (USD). When two phones tie or data is missing we mark the category "Depends".

Which is more affordable?

The cheaper option is shown as the value winner above. Prices are USD and may vary by region or retailer.