Oppo A18 vs Galaxy S25 Ultra
Side-by-side specs, benchmarks and the SpecEagle AI verdict.
vs
AI Verdict
The Galaxy S25 Ultra takes the overall edge with a 89/100 to 46/100 SpecEagle score, leading on Display, Camera, Performance, Battery, Build, Value. The Oppo A18 counters on value.
SpecEagle subscores
56
Display
96
46
Camera
93
46
Performance
94
78
Battery
88
60
Build
93
60
Value
78
Category wins: Oppo A18 0 · 6 Galaxy S25 Ultra
Benchmarks
Test
A · Oppo
B · Samsung
AnTuTu v10
240,000
2,580,000▲
Geekbench 6 Single
410
3,050▲
Geekbench 6 Multi
1,330
9,900▲
3DMark Solar Bay
2.5
78.0▲
Full specifications
A · Oppo
B · Samsung
Type
IPS LCD, 90 Hz
LTPO AMOLED 2X, 120 Hz, HDR10+
Size
6.56 inches
6.9 inches
Resolution
1,612 × 720 px (HD+)
3,120 × 1,440 px (498 ppi)
Peak brightness
—
2,600 nits
Protection
—
Corning Gorilla Armor 2
Always-on
—
Yes
A · Oppo
B · Samsung
Main
8 MP, f/2.0
200 MP, f/1.7, multi-directional PDAF, OIS
Selfie
5 MP
12 MP, f/2.2
Ultrawide
—
50 MP, f/1.9, 120° FoV
Telephoto 1
—
10 MP, f/2.4, 3× optical
Telephoto 2
—
50 MP, f/3.4, 5× optical
Video
—
8K @ 30 fps · 4K @ 120 fps
A · Oppo
B · Samsung
Chipset
MediaTek Helio G85 (12 nm)
Snapdragon 8 Elite for Galaxy (3 nm)
RAM
4 GB (+ virtual)
12 GB LPDDR5X
Storage
128 GB · microSD
256 GB / 512 GB / 1 TB UFS 4.0
CPU
—
8 cores (2 × 4.47 GHz + 6 × 3.53 GHz)
GPU
—
Adreno 830
A · Oppo
B · Samsung
Capacity
5,000 mAh
5,000 mAh
Wired
10 W
45 W
Wireless
—
15 W Qi2
Reverse
—
4.5 W wireless
Choose Oppo A18 if…
- 5,000 mAh battery for two-day light use.
- 90 Hz screen, splash resistance, jack + microSD.
- Tidy ColorOS.
- Very cheap.
Choose Galaxy S25 Ultra if…
- The most versatile camera system on any phone — four useful focal lengths.
- Seven years of OS updates matches Apple for longevity.
- Gorilla Armor 2 glass is the most scratch- and glare-resistant around.
- Built-in S Pen still has no real equivalent elsewhere.