Realme C100 vs Samsung Galaxy S25 Ultra
The Verdict
The Realme C100 and Samsung Galaxy S25 Ultra sit in the same category and end up appealing to slightly different buyers. The Realme C100 is the cheaper of the two at $220 versus $1,300, a difference of about $1,080. The Realme C100 is the newer release, which usually means a faster chipset and longer software support. Realme C100 stands out for large 6.5-inch display with 90hz refresh rate, while Samsung Galaxy S25 Ultra is praised for class-leading 200 mp main camera with 5x periscope zoom. Use the side-by-side spec table below to compare cameras, displays, battery life and connectivity in detail and decide which one fits your priorities.
Who Should Buy
Buy the Realme C100 if…
- →Large 6.5-inch display with 90Hz refresh rate
- →Decent battery capacity at 5000mAh for all-day use
- →Lightweight at 192 grams
Buy the Samsung Galaxy S25 Ultra if…
- →Class-leading 200 MP main camera with 5x periscope zoom
- →Built-in S Pen for note-taking and productivity
- →Bright 2600-nit display with Gorilla Glass Armor 2
Pros & Cons
Realme C100
Pros
- Large 6.5-inch display with 90Hz refresh rate
- Decent battery capacity at 5000mAh for all-day use
- Lightweight at 192 grams
- Budget-friendly entry-level option
Cons
- Basic 8MP main camera
- Limited performance with Helio G85 chipset
- Only 4GB RAM and 64GB storage
- Slow 10W charging
Samsung Galaxy S25 Ultra
Pros
- Class-leading 200 MP main camera with 5x periscope zoom
- Built-in S Pen for note-taking and productivity
- Bright 2600-nit display with Gorilla Glass Armor 2
- Snapdragon 8 Elite delivers top-tier performance
- 7 years of OS and security updates
Cons
- Very expensive at $1299 starting price
- S Pen lost Bluetooth remote features
- Charging speed still capped at 45W
- Large and heavy for one-handed use
Full Specifications
| Spec | Realme C100 | Samsung Galaxy S25 Ultra |
|---|---|---|
| Camera | ||
| Main camera | 8MP | 200 MP, f/1.7, OIS |
| Front camera | 5MP | 12 MP, f/2.2 |
| Telephoto | — | 50 MP 5x periscope + 10 MP 3x |
| Ultrawide | — | 50 MP, f/1.9 |
| Video | — | 8K@30fps, 4K@120fps |
| Design | ||
| Colors | Black, Green | — |
| Weight | 192g | — |
| IP rating | — | — |
| Battery | ||
| Capacity | 5000mAh | 5000 mAh |
| Charging Speed | 10W | — |
| Wireless Charging | — | |
| Charging | — | 45W wired |
| Wireless charging | — | 15W Qi2 |
| Display | ||
| Size | 6.5 inches | 6.9 inches |
| Type | IPS LCD | Dynamic AMOLED 2X LTPO |
| Brightness | — | — |
| Resolution | 720 x 1600 pixels | 3120 x 1440 |
| Refresh rate | 90Hz | 120Hz |
| Brightness (nits) | — | 2600 |
| Performance | ||
| RAM | 4GB | — |
| Chipset | MediaTek Helio G85 | — |
| Storage | 64GB | — |
| Software | — | Android 15, One UI 7 |
| Body | ||
| Weight | — | 218 g |
| Material | — | Titanium frame, Gorilla Glass Armor 2 |
| IP rating | — | IP68 |
| Dimensions | — | 162.8 x 77.6 x 8.2 mm |
| Memory | ||
| RAM | — | 12 GB |
| Storage options | — | 256 GB, 512 GB, 1 TB |
| Processor | ||
| CPU | — | Octa-core (2x4.47 GHz + 6x3.53 GHz) |
| GPU | — | Adreno 830 |
| Chipset | — | Snapdragon 8 Elite for Galaxy |
| Connectivity | ||
| 5G | — | |
| NFC | — | |
| USB | — | USB-C 3.2 |
| Wi-Fi | — | Wi-Fi 7 |
| Bluetooth | — | 5.4 |
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