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Compare features, prices and ratings to find the perfect phone for you.
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 | Oppo Reno4 Z 5G | Samsung Galaxy S25 Ultra |
|---|---|---|
| Display size (in) | 6.57 | 6.90 |
| Charging (W) | 18 | 45 |
| Main camera (MP) | 48.00 | 200.00 |
| Selfie (MP) | 16.00 | 12.00 |
| Weight (g) | 184 | 218 |
| Thickness (mm) | 8.10 | 8.20 |
| Chipset | Mediatek Dimensity 800 (7 nm) | Snapdragon 8 Elite |
| OS | Android 10, upgradable to Android 11, ColorOS 11.1 | Android 15 |
Pros & Cons
Oppo Reno4 Z 5G
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
Oppo
Oppo Reno4 Z 5G
Samsung
Samsung Galaxy S25 Ultra
Battery 3 specs
Type
Li-Po 4000 mAh
Li-Ion 5000 mAh
Charging
18W wired
45W wired
Capacity
—
5000 mAh
Body 5 specs
Dimensions
163.8 x 75.5 x 8.1 mm (6.45 x 2.97 x 0.32 in)
162.8 x 77.6 x 8.2 mm
Weight
184 g (6.49 oz)
218 g
SIM
Nano-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
Build
—
Glass front (Corning Gorilla Armor 2), glass back (Gorilla Glass Victus 2), titanium frame (grade 5)
—
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Stylus
Connectivity 7 specs
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
5.1, A2DP, LE, aptX HD
5.4, A2DP, LE
Positioning
GPS, GLONASS, GALILEO, BDS, QZSS
GPS, GLONASS, BDS, GALILEO, QZSS
NFC
Yes
Yes
Radio
No
No
USB
USB Type-C 2.0, OTG
USB Type-C 3.2, DisplayPort 1.2, OTG
5G
—
Yes
Display 5 specs
Type
IPS LCD, 120Hz, 480 nits (typ)
Dynamic AMOLED 2X
Size
6.57 inches, 104.2 cm2 (~84.3% screen-to-body ratio)
6.9 inches
Resolution
1080 x 2400 pixels, 20:9 ratio (~401 ppi density)
1440 x 3120 pixels
Protection
Corning Gorilla Glass 3+
Corning Gorilla Armor 2, Mohs level 6
—
DX anti-reflective coating
Features 2 specs
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
—
Samsung DeX, Samsung Wireless DeX (desktop experience support)
Ultra Wideband (UWB) support
Launch 2 specs
Announced
2020, September 29. Released 2020, October 15
2025, January 22
Status
Discontinued
Available. Released 2025, February 03
Main Camera 3 specs
Quad
48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 119˚ (ultrawide), 1/4.0", 1.12µm
Auxiliary lens
200 MP + 50 MP + 50 MP + 10 MP
Features
LED flash, HDR, panorama
Laser AF, Best Face, LED flash, auto-HDR, panorama
Video
4K@30fps, 1080p@30fps, gyro-EIS
8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Memory 5 specs
Card slot
No
No
Internal
128GB 8GB RAM, 256GB 12GB RAM
256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 1TB 16GB RAM
UFS 2.1
UFS 4.0
RAM
—
12GB
Storage
—
256GB
Misc 5 specs
Colors
Ink Black, Dew White
Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold
Models
CPH2065
SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS
Price
About 260 EUR
$ 806.08 / C$ 1,149.00 / £ 689.99 / € 840.00 / ₹ 99,990
SAR
—
1.26 W/kg (head) 0.64 W/kg (body)
SAR EU
—
1.25 W/kg (head) 1.42 W/kg (body)
Network 7 specs
Technology
GSM / HSPA / LTE / 5G
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66
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, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International
Speed
HSPA, LTE, 5G 3.5 Gbps DL
HSPA, LTE (CA), 5G
—
1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked
Our Tests 6 specs
Camera
Photo / Video
—
Loudspeaker
-28.1 LUFS (Average)
-24.6 LUFS (Very good)
Battery (old)
Endurance rating 78h
—
Performance
AnTuTu: 295562 (v8)
GeekBench: 2196 (v5.1)
GFXBench: 16fps (ES 3.1 onscreen)
AnTuTu: 2207809 (v10)
GeekBench: 9846 (v6)
3DMark: 6687 (Wild Life Extreme)
Display
1284:1 contrast ratio, 398 nits max brightness (measured)
1417 nits max brightness (measured)
Battery
—
Active use score 14:49h
Platform 4 specs
OS
Android 10, upgradable to Android 11, ColorOS 11.1
Android 15
Chipset
Mediatek Dimensity 800 (7 nm)
Snapdragon 8 Elite
CPU
Octa-core (4x2.0 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55)
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Mali-G57 MC4
Adreno 830 (1200 MHz)
Selfie Camera 4 specs
Dual
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
2 MP, f/2.4, (depth)
—
Features
HDR
HDR, HDR10+
Video
1080p@30fps
4K@30/60fps, 1080p@30fps
Single
—
12 MP
Sound 3 specs
Loudspeaker
Yes
Yes, with stereo speakers
3.5mm jack
Yes
No
24-bit/192kHz Hi-Res audio
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
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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.