Amazfit Active 2 vs Xiaomi Watch S3
Amazfit Active 2 (2025, listed at $99) and Xiaomi Watch S3 (2024, listed at $149) are both smartwatches, so the choice comes down to specifics.
Specs last updated · prices are list prices
Amazfit Active 2
Sub-$100 AMOLED with stainless-steel bezel, dual-band GPS and Zepp Coach training plans.
Xiaomi Watch S3
Swappable magnetic bezels, dual-band GPS and a 466×466 AMOLED for under $150.
The verdict
On the numbers we track, Amazfit Active 2 wins on weight (30 g vs 44 g) and price ($99 vs $149); Xiaomi Watch S3 wins on battery life (15 days vs 10 days).
Bottom line: on raw specs the Amazfit Active 2 leads 2 to 1, but five spec categories are only a starting point. Match it to your phone, your main sport and your budget before you decide, or run the free quiz to see how each ranks for your answers.
Spec by spec
| Spec | Amazfit Active 2 | Xiaomi Watch S3 |
|---|---|---|
| Battery (rated) | 10 days | 15 days |
| Weight | 30 g | 44 g |
| List price | $99 | $149 |
| Water rating | 5ATM | 5ATM |
| Tracked features | 3 | 3 |
| Case size | 43 mm | 47 mm |
| Display | AMOLED | AMOLED |
| Works with | both iPhone and Android | both iPhone and Android |
| Listed best for | everyday wellness, gym and strength work and running | everyday wellness, gym and strength work and running |
| Released | 2025 | 2024 |
Trophy marks the better value on the five measurable specs. Battery is the manufacturer's rating, not our test. How we score is on the methodology page.
Feature overlap
Both have (3)
- built-in GPS
- blood-oxygen (SpO₂)
- AMOLED display
Only Amazfit Active 2 (0)
Nothing unique.
Only Xiaomi Watch S3 (0)
Nothing unique.
Which one should you pick?
Pick the Amazfit Active 2 if…
- You want to spend less: it lists for $50 less.
- You want a lighter watch: 30 g vs 44 g.
- You might switch phones: it works with both iPhone and Android, the Xiaomi Watch S3 only works with Android.
- You want the newer model (2025 vs 2024).
Pick the Xiaomi Watch S3 if…
- You want fewer charges: about 15 days per charge vs 10 days.
- You might switch phones: it works with both iPhone and Android, the Amazfit Active 2 only works with Android.
Skip it if…
- • You have a small wrist (under about 160 mm) — the 47 mm case we list is large (check whether a smaller size is sold).
Frequently asked questions
Which has better battery life, the Amazfit Active 2 or the Xiaomi Watch S3?
The Xiaomi Watch S3 has the longer rated battery life: about 15 days per charge against 10 days. These are manufacturer ratings; heavy GPS, always-on display and cellular use will cut both.
Which is cheaper, the Amazfit Active 2 or the Xiaomi Watch S3?
The Amazfit Active 2 has the lower list price: $99 against $149 in our database. List prices change often, so check Amazon for today's price.
Do the Amazfit Active 2 and Xiaomi Watch S3 work with iPhone and Android?
Yes, they have the same phone support: both iPhone and Android.
Which is better for swimming, the Amazfit Active 2 or the Xiaomi Watch S3?
Neither has an edge on water rating: both are rated 5ATM. 5ATM is suitable for showering and pool swimming, but not for high-speed water sports or diving.
Not sure either is right for you?
Nine questions about your phone, sport, wrist and budget, scored against all of our watches with the reasoning shown.
Take the free quiz