Apple Watch Ultra 2 Review: Two Years of Runs, Sleep, and Daily Wear

I started running at 13, and I've worn plenty of watches since then: Garmins, Fitbits, and more Apple Watches than I care to count. The Apple Watch Ultra 2 is the one that stuck. For two years, I've used it through hundreds of runs, hundreds of nights of sleep tracking, and ordinary days when the Workout app never opened. I know its routines and annoyances now, not just the list on Apple's product page.

If you own an iPhone, run, and want useful health tracking, it's still the best all-around watch I've owned.

I Bought It for Running

When I bought it, I cared mostly about pace, distance, heart rate zones, and GPS accuracy. The Ultra 2 has handled all four well. Its GPS is the most accurate I've used in a sports watch: my routes follow the streets I ran instead of cutting through buildings, and the splits make sense when I look back at them. I usually use Apple's Workout app, though Nike Run Club and the other apps I've tried have also worked without trouble.

What surprised me was how much the watch changed around those runs. Software updates added health and recovery features that now affect when and how hard I train.

Sleep Apnea Notifications Gave Me Data to Act On

Sleep apnea notifications matter to me more than any other feature added since launch. I've suspected for some time that I might have sleep apnea. The Ultra 2 now watches for what Apple calls breathing disturbances: small wrist movements associated with interruptions in breathing during sleep. If the watch finds a pattern consistent with possible moderate to severe sleep apnea, it sends a notification.

The watch can't diagnose sleep apnea or replace a doctor. It can give me a record of breathing disturbances instead of leaving me with a vague concern. I can take that record to a clinician, and it's a good reason to keep wearing the watch to bed.

Vitals Puts Overnight Changes in Context

The Vitals app also arrived after launch. It pulls together overnight heart rate, respiratory rate, wrist temperature, sleep duration, and blood oxygen, then flags anything outside your typical range.

My guide to heart rate variability explains why I pay attention to overnight trends. How I feel when the alarm rings doesn't always match how well I've recovered. When two or three Vitals measurements move outside my normal range on the same night, I think about taking an easier day. The app can't tell me exactly what's wrong, but it catches changes I might otherwise miss.

Runs, Recovery, and Training Load

Training load gives me a useful check on workout intensity. After a session, the watch asks how hard it felt and uses that rating to compare it with my recent work. I can spot a sudden jump instead of treating every hard day in isolation.

After 12 years of running, I've learned that hard workouts only help when I recover from them. That's why most of my mileage stays easy and aerobic. Training load doesn't make the decision for me, but it gives me one more reason to back off when my recent work is already high.

Workout tracking records the work. Training load and overnight data help me judge how well I'm handling it. That combination is why the Ultra 2 works so well for me.

Living With It Day to Day

The watch still looks good after two years. Its titanium case has hit door frames, taken drops, and picked up everyday knocks without serious damage. I have a smaller wrist, and the 49mm case looked excessive at first. A snug band keeps it from moving around, though I still wouldn't call it a small watch.

The always-on display saves me from exaggerating a wrist raise just to check my pace. It dims when I'm not looking at it, then gets bright enough to read in direct summer sun. That sounds minor until you're trying to read a split without breaking stride.

I set the Action Button to begin a run. One press is quicker than working through menus, especially with cold fingers.

Battery Life Complicates Sleep Tracking

My complaint from two years ago hasn't changed. Apple rates the battery for up to 36 hours of normal use or 72 hours in Low Power Mode, and it can reach about 80% in roughly an hour. That's enough for daily use, but not enough to forget about the charger.

Sleep tracking means finding that charging window during the day. I top it up while I shower or eat breakfast so it's ready before bed. The routine works, but miss it and the watch may need power when I want to sleep. A longer-lasting battery would remove the only regular chore this watch creates.

That inconvenience is one reason I added an Oura Ring 4 for overnight tracking. Its longer battery life makes sleep easier to cover, while the Ultra 2 is much better during a run. Wearing both costs a lot, but I care enough about those two jobs that I don't want to choose between them.

Smaller Features I Use

A few other features have held up in daily use:

• Water resistance to 100 meters lets me leave it on through rain, sweaty workouts, showers, and swims.
• Apple's connected features cover calls, texts, music, podcasts, and smart-home controls. Cellular service also lets me run without my phone and stay reachable.
• ECG and blood oxygen readings give me additional health data from the wrist. I treat those readings as information, not a substitute for medical care.

Who I'd Recommend the Ultra 2 To

The Ultra 2 makes the most sense if you own an iPhone and run, hike, swim, or want detailed health tracking in the same device you use for calls and apps. Sleep apnea notifications, Vitals, and training load have made my two-year-old watch more capable than it was at launch.

It's more watch than many people need. A standard Apple Watch Series model costs less and covers the basics. If you care more about overnight recovery than live workout information, a smart ring may work better. Android users need to look elsewhere because the Ultra 2 requires an iPhone.

My Verdict After Two Years

I'd buy the Ultra 2 again. It tracks runs better than any sports watch I've used, shows when my overnight measurements move outside their usual ranges, and watches for breathing-disturbance patterns I've been concerned about for years.

I still have to plan when it comes off my wrist, and a $799 watch shouldn't make sleep tracking feel like a scheduling problem. Even with that flaw, I keep wearing it for the run data, health tracking, durability, and everyday iPhone features.