Apple Watch Ultra (1st gen) vs Apple Watch Ultra 3
Same maker, different lines: the Apple Watch Ultra (1st gen) and the Apple Watch Ultra 3 are both Apple products, built with different priorities in mind. This one has a front-runner. The Apple Watch Ultra 3 wins 3 of 4 compared areas, and display is where the difference is hardest to miss.
At a glance
- Display Apple Watch Ultra 3 wins
- Health & Fitness Sensors Tie
- Battery Life Apple Watch Ultra 3 wins
- Smart Features & Connectivity Apple Watch Ultra 3 wins
- Price Tie
- Display5.0
- Health & Fitness Sensors10.0
- Smart Features & Connectivity6.7
- Display10.0
- Health & Fitness Sensors10.0
- Smart Features & Connectivity10.0
Spec scores (0 to 10) are calculated from manufacturer specs against other models in the same class. See how the formula works. They are not reviews or user ratings.
Key Differences
-
The Apple Watch Ultra 3 has 50% higher peak brightness
This is one of the widest gaps in the whole comparison: 3,000 nits for the Apple Watch Ultra 3 versus 2,000 nits for the Apple Watch Ultra (1st gen). Indoors, both may be bright enough; the difference shows up in direct sunlight.
-
The Apple Watch Ultra 3 has 17% more rated battery life
Small gaps can still matter over time, and here the Apple Watch Ultra 3 leads 42 h to 36 h. The Apple Watch Ultra 3 is rated to last longer between charges, a big deal on trips and long weekends.
-
The Apple Watch Ultra 3 has 32 GB more storage
The Apple Watch Ultra (1st gen) lists 32 GB; the Apple Watch Ultra 3 comes in at 64 GB. That’s not a rounding error. If you run or train without your phone, the Apple Watch Ultra 3’s extra storage is useful.
Design & Size
- Apple Watch Ultra (1st gen) 49 mm × 0.47 in
- Apple Watch Ultra 3 49 mm × 0.47 in
The official dimensions put the Apple Watch Ultra (1st gen) and the Apple Watch Ultra 3 within a whisker of each other. Neither the Apple Watch Ultra (1st gen) nor the Apple Watch Ultra 3 has a weight advantage worth mentioning.
Design & Durability
| Spec | Apple Watch Ultra (1st gen) | Apple Watch Ultra 3 |
|---|---|---|
| Case size (largest) | 49 mm | 49 mm |
| Available sizes | 49 mm | 49 mm |
| Water resistance | 100 m | 100 m |
| Case material | Titanium | Titanium |
| Thickness | 0.47 in | 0.47 in |
| Weight (largest, no band) | 2.16 oz Lightest in class | 2.17 oz Heaviest in class |
Display
Apple Watch Ultra 3 leads
Look at the display table and one name keeps coming out on top: the Apple Watch Ultra 3. Here the Apple Watch Ultra 3 offers 50% higher peak brightness. A brighter screen stays readable on a sunny run, at the beach or on a ski slope. Anyone shopping mainly on display should start with the Apple Watch Ultra 3.
Peak brightness
Apple Watch Ultra (1st gen): 2,000 nits Apple Watch Ultra 3: 3,000 nits The Apple Watch Ultra 3’s higher peak brightness is a real help for outdoor workouts.
Health & Fitness Sensors
Too close to call
In the health & fitness sensors category, the Apple Watch Ultra (1st gen) and the Apple Watch Ultra 3 land in almost the same place. Net result on health & fitness sensors: level.
Battery Life
Apple Watch Ultra 3 leads
It’s a narrow one, but the battery life round goes to the Apple Watch Ultra 3. The Apple Watch Ultra 3 gives you 17% more rated battery life. Ratings assume typical use; GPS workouts and always-on screens will shorten both. In short, the Apple Watch Ultra 3 is the better-equipped watch for battery life.
Rated battery life
Apple Watch Ultra (1st gen): 36 h Apple Watch Ultra 3: 42 h Longer battery life means fewer nights on the charger, which also makes sleep tracking easier.
Smart Features & Connectivity
Apple Watch Ultra 3 leads
On smart features & connectivity, the Apple Watch Ultra 3 comes out slightly ahead. On the Apple Watch Ultra 3, you get 32 GB more storage. For notifications and fitness tracking alone, storage rarely matters. For anyone who cares most about smart features & connectivity, the Apple Watch Ultra 3 is the safer choice.
Storage
Apple Watch Ultra (1st gen): 32 GB Apple Watch Ultra 3: 64 GB More storage leaves room for offline music, podcasts and maps on your wrist.
Full Specifications
Display
| Spec | Apple Watch Ultra (1st gen) | Apple Watch Ultra 3 |
|---|---|---|
| Display type | Always-On Retina LTPO2 OLED, flat sapphire | Always-On wide-angle LTPO3 OLED, flat sapphire |
| Resolution (largest) | 410 x 502 | 422 x 514 |
| Peak brightness | 2,000 nits Dimmest screen in class | 3,000 nits (winner) |
| Always-on display | Yes | Yes |
Health & Fitness Sensors
| Spec | Apple Watch Ultra (1st gen) | Apple Watch Ultra 3 |
|---|---|---|
| Optical heart rate | Yes | Yes |
| ECG | Yes | Yes |
| Blood oxygen | Yes | Yes |
| Skin temperature | Yes | Yes |
| GPS | L1 + L5 dual-frequency GPS (GLONASS, Galileo, QZSS, BeiDou) | L1 + L5 dual-frequency GPS (GLONASS, Galileo, QZSS, BeiDou) |
| Dual-frequency GPS | Yes | Yes |
Battery Life
| Spec | Apple Watch Ultra (1st gen) | Apple Watch Ultra 3 |
|---|---|---|
| Rated battery lifeManufacturer rating, typical use | 36 h | 42 h (winner) |
| Rated life in low-power modeManufacturer rating | N/A (not specified) | 3 days |
| Charging | USB-C magnetic fast charging | Fast charging, 0 to 80% in about 45 min |
Smart Features & Connectivity
| Spec | Apple Watch Ultra (1st gen) | Apple Watch Ultra 3 |
|---|---|---|
| Chip | S8 | S10 |
| Storage | 32 GB | 64 GB (winner) |
| Cellular option | Yes | Yes |
| Contactless payments | Yes | Yes |
| Phone compatibility | iPhone only | iPhone only |
| Software | watchOS | watchOS |
Design & Durability
| Spec | Apple Watch Ultra (1st gen) | Apple Watch Ultra 3 |
|---|---|---|
| Case size (largest) | 49 mm | 49 mm |
| Available sizes | 49 mm | 49 mm |
| Water resistance | 100 m | 100 m |
| Case material | Titanium | Titanium |
| Thickness | 0.47 in | 0.47 in |
| Weight (largest, no band) | 2.16 oz Lightest in class | 2.17 oz Heaviest in class |
Price
| Spec | Apple Watch Ultra (1st gen) | Apple Watch Ultra 3 |
|---|---|---|
| Launch price | $799 | $799 |
“N/A” means the manufacturer does not specify the value or we could not confirm it. Figures marked “manufacturer rating” are the maker’s own claims, not our measurements.
Price & Value
Price is a tie: both launched at the same figure.
Prices shown are US launch prices as of September 2025. Retail prices change often, so it’s worth checking current offers.
Which One Should You Buy?
Choose the Apple Watch Ultra (1st gen) if…
- you find the Apple Watch Ultra (1st gen) already covers everything you need
Choose the Apple Watch Ultra 3 if…
- you want the brighter screen (3,000 nits vs 2,000 nits)
- you hate charging your watch every day (42 h vs 36 h)
- you want more on-watch storage (64 GB vs 32 GB)
- you want the changes the Apple Watch Ultra 3 brings over its predecessor
Also Compared
Frequently Asked Questions
Which is better for most people, the Apple Watch Ultra (1st gen) or the Apple Watch Ultra 3?
On the specs compared here, the Apple Watch Ultra 3 makes more sense for most buyers; the Apple Watch Ultra (1st gen) doesn’t win a single measurable area.
Is the Apple Watch Ultra 3 worth it over the Apple Watch Ultra (1st gen)?
If those changes matter to you, yes: the Apple Watch Ultra 3 adds 50% higher peak brightness, 17% more rated battery life and 32 GB more storage compared with the Apple Watch Ultra (1st gen).
Which has better battery life, the Apple Watch Ultra (1st gen) or the Apple Watch Ultra 3?
The Apple Watch Ultra 3 comes out ahead on rated battery life, with 42 h compared with 36 h on the Apple Watch Ultra (1st gen).
Which is larger, the Apple Watch Ultra (1st gen) or the Apple Watch Ultra 3?
The Apple Watch Ultra (1st gen) and the Apple Watch Ultra 3 are so close in size that you’d struggle to tell them apart on dimensions alone.
Is the Apple Watch Ultra (1st gen)’s display better than the Apple Watch Ultra 3’s?
On display specs, the Apple Watch Ultra 3 leads thanks to 50% higher peak brightness.
Which weighs less, the Apple Watch Ultra (1st gen) or the Apple Watch Ultra 3?
Weight won’t decide this one; the Apple Watch Ultra (1st gen) and the Apple Watch Ultra 3 are very close.
Executive Summary
Picking between the Apple Watch Ultra (1st gen) and the Apple Watch Ultra 3 is less about the brand and more about which compromises you can live with. The biggest reason I lean toward the Apple Watch Ultra 3 is simple: it has 50% higher peak brightness. There’s more, too: the Apple Watch Ultra 3 offers 17% more rated battery life.
Put simply, the Apple Watch Ultra (1st gen) suits people who care about the things a spec sheet can’t capture, while the Apple Watch Ultra 3 suits people who put display first.
My pick: the Apple Watch Ultra 3.
Personal opinion based on the data above. Your priorities may differ.