Apple Watch Series 10 vs Ultra 2: No-brainer or tough call?

The all-new Apple Watch Series 10 is here and comes with the largest screen ever paired with the thinnest design, a new chip, faster charging, and new health/fitness features. Meanwhile, Apple is offering the high-end Ultra 2 with the same specs as last year but in a new Black titanium finish option. Here’s an in-depth look at how Apple Watch 10 vs Ultra 2 compare.

For a look at how Series 10 compares to Series 9 and older models, check out this guide, otherwise read on for 10 vs Ultra 2 😁:

• Apple Watch Series 10 vs 9 and earlier: What’s new and improved?

Apple Watch Series 10 vs Ultra 2

Processor, GPU, Neural Engine, storage

Series 10 is powered by the new S10 SiP. Apple didn’t share any details on exactly how much faster it is compared to S9 and earlier. But it says it was custom-designed for “performance, power efficiency, and intelligence.”

Ultra 2 continues on with the S9 SiP. During its unveiling, Apple suggested the S10 will deliver better experiences with machine learning tasks, on-device Siri, health features, and capabilities like Apple Watch double tap control.

	Series 10	Ultra 2
SiP/processor	S10 SiP 64-bit dual-core processor	S9 SiP 64-bit dual-core processor
Neural Engine	4-core	4-core
Ultra wideband chip	✅ – gen 2	✅ – gen 2
Bluetooth	5.3	5.3
Storage	64GB	64GB

In reality, the S9 and S10 chips are both powerful and fast enough for everyone. Since Apple didn’t specify how much faster the S10 is, it’s likely not more than 10 or 15% more powerful/fast.

Two more benefits with either Series 10 or Ultra 2, compared to Apple Watch 8 or earlier, you get an increase in storage to 64GB and the ultra wideband gen 2 chip which offers precision finding.

Case and display

Apple Watch Series 10 introduces new sizes for the wearable that feature the biggest displays and thinnest design.

The 46 and 42mm cases offer what Apple says is up to 30% more screen area compared to Series 6. That means you get an additional line of text on the display.

And for the 46mm Series 10, the new display is ever-so-slightly larger than even the 49mm Apple Watch Ultra/2.

Both the display and case of Series 10 have more rounded corners that give a softer and sleeker feel. Interestingly, Apple did increase the bezel of the display slightly with Series 10.

For thickness, Apple says Series 10 is almost 10% thinner than Series 7-9.

And compared to Ultra 2, Series 10 is a whopping ~50% thinner at 9.7mm vs 14.4mm.

	Series 10	Ultra 2
Case size (height)	46/42mm	49mm
Thickness	9.7mm	14.4mm
Weight	35-41 grams for 46mm, 29-34 grams for 42mm (depending on model)	61 grams (2.15 oz)
Display size	416 x 496 pixels, 1220 sq mm display area (46mm model)	410 x 502 pixels, 1185 sq mm display area
Pixels per inch (PPI)	326	326
Brightness max	2,000 nits	3,000 nits
Always‑On Retina LTPO2 display	–	✅
Always‑On Retina LTPO3 display	✅	–
Wide-angle OLED display	✅	❌
Sapphire crystal front	With titanium models	✅
Ion-X front	With aluminum models	–

Another new feature for Series 10 is the wide-angle OLED display that delivers up to a 40% brighter screen when looking from an angle.

But Ultra 2 keeps the brightest screen overall with up to 3,000 nits.

Apple Watch band compatibility

Apple highlights “You can match most bands with any Apple Watch Series 3 or later case of the same size.”

Battery life and charging

Apple has improved charging with Series 10. It can go from 0-80% in just 30 minutes. That’s compared to 60 minutes for the same with Ultra 2.

But on the flip side, Ultra 2 has double the battery life of Series 10.

	Series 10	Ultra 2
Battery life – standard	18 hours	36 hours
Extended battery with Low Power mode	36 hours	72 hours
Charging	0-80% in 30 minutes	0-80% in 60 minutes

If you’re interested in using Apple Watch Series 10 for sleep tracking, you also get 8 hours worth of use from an 8-minute charge (same as Series 9 and 8).

Apple Watch 10 vs Ultra 2 – Key features

New with Apple Watch Series 10 and Ultra 2 are Sleep apnea notifications (will arrive for Series 9 too). You also can play audio directly through both the Series 10 and Ultra 2’s speakers.

And Series 10 gains features from the Ultra 2 – the water depth gauge and water temperature sensor.

Like with Series 9 and Ultra 2, the Blood Oxygen feature is not available in the US for Series 10.

Apple Watch model/features	Series 10	Ultra 2
Sleep apnea notifications	✅	✅
ECG app	✅	✅
Blood Oxygen app	❌	❌
High/low heart rate notifications	✅	✅
Training load	✅	✅
Action button	❌	✅
IP6X dust resistant	✅	✅
MIL-STD 810H	❌	✅
Water resistant to 50m	✅	–
Water resistant to 100m	❌	✅
Water depth gauge	✅	✅
Water temp sensor	✅	✅
Sleep tracking	✅	✅
Crash detection	✅	✅
Fall detection	✅	✅
Advanced cycle tracking with temp sensing	✅	✅
Emergency SOS	✅	✅
On-device Siri	✅	✅
Double tap gesture control	✅	✅
Siri+Health	✅	✅
Speaker playback	✅	✅
GPS radios	L1	L1 + L5 Precision dual-frequency
Offline Maps	✅	✅
Microphones	1 with voice isolation	3 with beamforming and wind noise mitigation
Operating environmental temperature requirements	32° to 95° F (0° to 35° C)	–4° to 130° F (–20° to 55° C) on-wrist

Finishes/colors

For Series 10, Apple has switched from stainless steel to grade 5 titanium for the high-end models – the same used with Ultra 2.

Meanwhile, it’s kept aluminum for the base models but now offers a Jet Black polished finish.

Series 10 aluminum Apple Watch comes in:

• Silver
• Rose Gold
• Jet Black

Series 10 titanium Apple Watch comes in:

• Slate
• Gold
• Natural

For Ultra 2 in 2024, Apple has added Black alongside the existing Natural Titanium.

Price

• Series 10 in aluminum starts from $399/$429 (Apple, Amazon, more)
• Series 10 in titanium goes from $699/$749 (Apple, Amazon, more)
• Ultra 2 sells from $799 with the more affordable bands (Apple, Amazon, more)

Apple Watch 10 vs Ultra 2 buyer’s guide

TL;DR

• Pick Series 10 for the thinnest and lightest Apple Watch with all-day battery, a screen as large as Ultra 2 with improved wide-angle viewing, and the latest chip
• Pick Ultra 2 for the longest battery life, greatest durability, dual GPS radios, and more customizability via the Action button

Apple Watch Series 10 brings a larger screen with 40% brighter angled viewing, a thinner design, an improved S10 SiP, faster charging, and depth/water sensors that could entice users to upgrade.

For those with older Apple Watch models, you’ll get additional upgrades like an always-on screen, faster charging, and all of Apple’s health features.

In contrast, Ultra 2 is unchanged except for the new black finish. However, it still boasts the longest battery life, extra features like an Action button, dual GPS radios, and a more durable design that works in colder and hotter temps, goes to 100m underwater, and more.

What do you think? Are you going to upgrade? Going to skip this year? Share your thoughts in the comments!

Thanks for reading our guide on Apple Watch 10 vs Ultra 2!