P3 Ultra 5G vs P4 Power 5G
Winner
Realme P4 Power 5G
Lifespan decides this one: the P4 Power 5G is supported until Jan 2030 at $7.12 per month of safe use, while the P3 Ultra 5G runs out in Mar 2029 ($9.88/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.
Value Score: P3 Ultra 5G 74 · P4 Power 5G 73 — methodology
Who should pick which
Beyond the scores — our take on each phone and the buyer it actually suits.
A 6000mAh, IP69-rated P-series flagship with the Dimensity 8350 Ultra and a big, slim AMOLED, supported to 2029.
Pick it if
- ✓ Battery-life users
- ✓ Value performance
Skip it if
- ✗ You want 120W charging
- ✗ You need fast USB
The first phone with a 10,001mAh battery, the Realme P4 Power turns multi-day endurance into its whole identity, backed by an official 3 OS / 4 security-year promise and full IP69 durability.
Pick it if
- ✓ Heavy users who hate charging
- ✓ Travelers and outdoor users
- ✓ Long-term budget keepers
Skip it if
- ✗ You want a light, slim phone
- ✗ You prioritize camera versatility
The lifespan decider
When specs are close, support length decides it — this is what each phone costs per month of safe use.
Category by category
Both displays are effectively the same class.
The P3 Ultra 5G's MediaTek Dimensity 8350 Ultra (4nm) is simply the faster chip.
Camera systems are comparable on paper — pick by sample photos.
Battery capacities are close enough not to decide this.
The P4 Power 5G is supported until Jan 2030 — 10 months longer than the P3 Ultra 5G.
Pound for pound, these two are equally good deals.
Frequently asked
How water resistant is the Realme P3 Ultra?
It carries IP68 and IP69 ratings, making it dust-tight and resistant to immersion as well as high-pressure water jets.
What is the battery and charging on the P3 Ultra?
It packs a 6000mAh battery with 80W wired charging (full charge in about 47 minutes) plus 5W reverse charging.
How long will the Realme P4 Power get software updates?
Realme's P4 series policy covers 3 major Android OS upgrades and 4 years of security patches. Because the P4 Power launched in January 2026 on Android 16 with realme UI 7.0, that means OS updates up to Android 19 and security support to roughly January 2030 - a solid window that lets the enormous battery outlast several ordinary phones' worth of charge cycles.
Is the 10,001mAh battery worth the extra weight?
If battery anxiety is your main pain point, yes. The trade-off is real - 219g and about 9.1mm make it one of the chunkier phones in its class - but you get genuine two-day endurance, 32.5 hours of rated video playback and the ability to reverse-charge earbuds or a friend's phone. If you value slimness over stamina, a lighter P4 or 15T makes more sense.
Full spec table
| Spec | P3 Ultra 5G | P4 Power 5G |
|---|---|---|
| Price (street) | $315 | $300 |
| Display | 6.83-inch AMOLED, 1.5K, 120Hz, up to 1500 nits peak, Gorilla Glass 7i | 6.78-inch 1.5K AMOLED (1280x2800), 144Hz, Gorilla Glass 7i |
| Chipset | MediaTek Dimensity 8350 Ultra (4nm) | MediaTek Dimensity 7400 Ultra |
| RAM | 8GB/12GB | 8GB/12GB |
| Storage | 128GB/256GB/512GB | 128GB/256GB |
| Battery | 6,000 mAh | 10,001 mAh |
| Charging | 80W wired (100% in 47 min), 5W reverse | 80W wired, 27W reverse wired |
| Rear cameras | 50MP main, 8MP ultra-wide | 50MP main, 8MP ultra-wide |
| Dimensions | 163.1 × 76.9 × 7.4 mm | 163.3 x 76 x 9.1 mm (approx) |
| Weight | 183 g | 219 g |
| Water resistance | IP68/IP69 | IP66/IP68/IP69 |
| Supported until | Mar 2029 | Jan 2030 |
More comparisons
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.