Samsung
Samsung Galaxy S25 Ultra
$1299.99
Released 2025-02
Best Smartphones · head-to-head
Samsung Galaxy S25 Ultra vs Asus Zenfone 12 Ultra
A sourced, side-by-side comparison. Samsung Galaxy S25 Ultra is cheaper at $1299.99. Every spec and price links to its source.
Asus
Asus Zenfone 12 Ultra
—
Released 2025-02
Which is better: the Samsung Galaxy S25 Ultra or Asus Zenfone 12 Ultra?
They split the 4 specs we compare evenly.
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Key specs, head to head
The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Samsung Galaxy S25 Ultra | Asus Zenfone 12 Ultra |
|---|---|---|
| US price | $1299.99 MSRP, 256GB (base config) | — |
| Brand | Samsung | Asus |
| Released | 2025-02 | 2025-02 |
| Display (in) | 6.9 | 6.78 |
| Display type | Dynamic LTPO AMOLED 2X | LTPO AMOLED |
| Refresh (Hz) | 120 | 144 |
| Chipset | Qualcomm Snapdragon 8 Elite for Galaxy | Qualcomm Snapdragon 8 Elite |
| RAM (GB) | 12 | 12 |
| Storage (GB) | 256 | 256 |
| Main camera (MP) | 200 | 50 |
| Battery (mAh) | 5000 | 5500 |
| Charge (W) | 45 | 65 |
| Weight (g) | 218 | 220 |
| OS | Android 15 | Android 15 |
| IP rating | IP68 | IP68 |
| Fiveg | Yes | Yes |
Sources — Samsung Galaxy S25 Ultra: gsmarena.com (verified 2026-06-15). Asus Zenfone 12 Ultra: gsmarena.com (verified 2026-06-15).
What's the difference between the Samsung Galaxy S25 Ultra and Asus Zenfone 12 Ultra?
Where the two actually differ on the specs we track (8 of 13). Matching specs are omitted.
- Display (in): Samsung Galaxy S25 Ultra 6.9 vs Asus Zenfone 12 Ultra 6.78
- Display type: Samsung Galaxy S25 Ultra Dynamic LTPO AMOLED 2X vs Asus Zenfone 12 Ultra LTPO AMOLED
- Refresh (Hz): Samsung Galaxy S25 Ultra 120 vs Asus Zenfone 12 Ultra 144
- Chipset: Samsung Galaxy S25 Ultra Qualcomm Snapdragon 8 Elite for Galaxy vs Asus Zenfone 12 Ultra Qualcomm Snapdragon 8 Elite
- Main camera (MP): Samsung Galaxy S25 Ultra 200 vs Asus Zenfone 12 Ultra 50
- Battery (mAh): Samsung Galaxy S25 Ultra 5000 vs Asus Zenfone 12 Ultra 5500
- Charge (W): Samsung Galaxy S25 Ultra 45 vs Asus Zenfone 12 Ultra 65
- Weight (g): Samsung Galaxy S25 Ultra 218 vs Asus Zenfone 12 Ultra 220
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Samsung Galaxy S25 Ultra
Two whitelisted lab testers (Tom's Guide, GSMArena) reviewed the exact Galaxy S25 Ultra. Both praise the overclocked Snapdragon 8 Elite speed, and Tom's Guide measured strong battery endurance (17h14m). Display measurements diverge by methodology. Both flag the slow 45W charging (~59 min to full); GSMArena calls the panel solid but not cutting-edge, while Tom's Guide rates the display excellent and brighter than the iPhone 16 Pro Max. (2 sourced reviews, 2 lab-tested.)
Praised: Fast overclocked Snapdragon 8 Elite performance, one of the fastest phones tested; Excellent, bright display beating iPhone 16 Pro Max in Tom's Guide lab (1,860 nits); Strong battery endurance (17h14m Tom's Guide test).
Flagged: Slow 45W charging, ~59 minutes to full; Qi2 support lacks built-in magnets; needs a special case; Display is solid but not cutting-edge per spec / dims quickly at peak.
Asus Zenfone 12 Ultra
No sourced tester review yet.