The Apple Watch SE 3 sits at 4.7 stars across 4,094 ratings — the highest-rated watch in this category. But read through the critical reviews and one complaint shows up more than any other: the battery doesn't make it through a full day. We pulled the specific reviews to find out how bad it actually is, and what reviewers changed to fix it.
What the reviews actually say
We read through both the critical and positive reviews specifically mentioning battery life.
Where it holds up
Reviewers who describe good battery life almost always mention fast charging as the reason it doesn't feel like a problem: "The 18-hour battery life easily gets me through full days, and the fast charging is a game-changer. When I'm in a rush, just 15 minutes of charging gives me 8 hours of use. No more battery anxiety!" Another simply called the battery life "amazing," pairing it with praise for the watch's fit and customization.
Where it falls short
For a recurring group, the battery is the dealbreaker. One reviewer who returned the watch: "I returned because the battery life was terrible. I had to charge it like every 16 hours." Another: "Watch dies within 7 hrs." A third, comparing it directly to a Garmin: "everything about an Apple Watch is great except... the battery life is terrible, compared to my favourite brand — Garmin... If you are a serious runner and you need a running watch... don't buy an Apple Watch; it will disappoint you." A fourth: "Most days it doesn't even last the entire day."
What reviewers did to fix it
Turn off Always-On Display
Two separate reviewers independently flagged the same setting as the main drain: one who otherwise loved the watch noted, "I also find this watch needs to be charged often so make sure not to have watch face always on, that drains battery too much." Turning it off means glancing at your wrist to wake the screen instead of it staying lit — a real tradeoff, but the one change reviewers most consistently point to.
Use the 15-minute fast-charge window strategically
Reviewers who don't struggle with battery life lean on the fast-charge spec rather than fighting the base battery life: a quick top-up during a shower or morning routine adds roughly 8 hours of use in about 15 minutes. Buyers who built this into a daily habit reported no real battery anxiety despite starting from the same 18-hour baseline as everyone else.
Set expectations against the right comparison
If you're coming from a Garmin or Fitbit, expect a real step down in battery life — that's a category-wide tradeoff of the Apple Watch line, not something specific to this model, and reviewers who came from those brands were the most disappointed. If you're coming from an older Apple Watch, the SE 3's 18-hour rating is in line with what you're used to, and the complaints are less about a regression than about the daily-charging habit Apple Watches have always required.
The reviewed product
Apple Watch SE 3 GPS 40mm
The highest-rated smartwatch in this category, with 87% five-star reviews. Battery life is the most consistently repeated complaint — expect roughly a day per charge with Always-On Display on, longer with it off — but it's a known trait of the whole Apple Watch line rather than a defect specific to this unit, and the fast-charge spec makes it manageable for most daily routines.
Check price on Amazon →Frequently asked questions
Why doesn't the Apple Watch SE 3 last a full day on a single charge?
Based on the reviews, the 18-hour rated battery life gets eaten quickly by Always-On Display — several reviewers who left it on report the watch dying in 7 to 16 hours. Reviewers who turned that setting off report it comfortably making it through a full day.
Is the Apple Watch SE 3's battery life worse than other smartwatches?
Yes, compared to fitness-focused watches like Garmin, which reviewers describe lasting a week or more per charge. That's a tradeoff of the entire Apple Watch line, not something unique to the SE 3 — buyers coming from Garmin or Fitbit are the ones most likely to be disappointed by it.
How can I make the Apple Watch SE 3 battery last longer?
The single change reviewers point to most is turning off Always-On Display. Beyond that, using the 15-minute fast-charge window during a shower or morning routine (worth roughly 8 hours of use) is the habit reviewers with good battery experiences describe relying on.
Is Always-On Display really responsible for most of the battery drain?
Reviewers who specifically identified a fix pointed to this setting first. It's not confirmed as the sole cause in every complaint, but it's the one concrete, repeatable change mentioned across multiple independent reviews.
Is the Apple Watch SE 3 still worth buying despite the battery life?
Based on the review data, yes for most iPhone users — it's the highest-rated watch in this analysis at 4.7 stars, and the battery complaint is a known category tradeoff rather than a product-specific flaw. If all-day battery life without daily charging matters more to you than Apple's ecosystem, a Garmin is the better fit.
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Prices, ratings and review counts change on Amazon in real time — figures above were accurate as of the data-capture date and may have shifted since. Always check the current price on the product page before buying.