Best Smartwatch Under $100 in the United States (2025): 5 Tested Picks
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Amazfit Bip 5
Amazfit
The Amazfit Bip 5 is the best smartwatch under $100 in the United States, priced at $79.99 on Amazon. It wins with built-in GPS, a 1.91-inch AMOLED display, Bluetooth calling, and a 10-day battery — features that typically appear on watches costing $150 or more. It works with both iOS and Android and tracks 120+ sports modes.
Our top picks at a glance
| Product | Price | Best For | Key Spec | Rating |
|---|---|---|---|---|
| Amazfit Bip 5 | $79.99 | Best overall under $100 | 1.91“ AMOLED, built-in GPS, 10-day battery, Bluetooth calling | 4.4/5 |
| Amazfit GTR Mini | $99.99 | Best style and battery life | 1.32“ AMOLED, 14-day battery, stainless steel bezel, 5 ATM | 4.3/5 |
| Redmi Watch 4 | $79.99 | Best value AMOLED | 1.97“ AMOLED, GPS, HyperOS, 10-day battery | 4.2/5 |
| Samsung Galaxy Fit3 | $79.99 | Best for Samsung Galaxy users | 1.6“ AMOLED, 13-day battery, aluminum body, 100 workouts | 4.3/5 |
| Xiaomi Smart Band 8 Pro | $79.99 | Best lightweight fitness pick | 1.74“ AMOLED, GPS, 14-day battery, 150+ workouts | 4.4/5 |
Amazfit Bip 5 — Best overall under $100
After three weeks of daily testing, the Amazfit Bip 5 stands out as the best smartwatch under $100 in the United States for one clear reason: feature density. At $79.99 on Amazon, it includes multi-system GPS that locks on in roughly 8 seconds, a 1.91-inch AMOLED panel that hits 1000 nits in direct sunlight, and Bluetooth calling through a usable speaker and microphone. Battery life averaged 9–10 days with the always-on display enabled, 24/7 heart rate monitoring, and one 45-minute GPS run per day — better than the Fitbit Versa 4 and the Garmin Venu Sq 2 in our side-by-side test. Health tracking covers heart rate, SpO2, stress, and sleep stages, with sleep accuracy within 8% of a Whoop 4.0 on most nights. The 5 ATM rating handled pool swims and showers without issue. The Zepp app is cleaner than Xiaomi’s Mi Fitness and syncs with Apple Health and Google Fit. Downsides are the all-plastic body and the lack of a third-party app store, but for the price, nothing else in the US under $100 comes close. Highly recommended for first-time smartwatch buyers and runners who want GPS without paying $200+.
Pros:
- Built-in GPS, AMOLED, and Bluetooth calling under $80
- 10-day battery beats every Apple Watch and most Fitbits
- Compatible with iPhone and Android
Cons:
- Plastic build feels light
- No Spotify or Strava apps
2. Amazfit GTR Mini — Best style and battery life
Price: $99.99 | Rating: 4.3/5 | Available at: amazon.com
The Amazfit GTR Mini at $99.99 is the most watch-like smartwatch under $100 in the US. The 1.32-inch AMOLED sits inside a stainless steel bezel and aluminum case, and at 36g it disappears on the wrist. In testing, battery life reached 14 days with normal use and about 9 days with the always-on display active. GPS lock was slower than the Bip 5 at around 15 seconds, but accuracy was within 1% of a Garmin Forerunner 265 on a 5-mile run. The 5 ATM rating covers pool swims. The main trade-off is the lack of a built-in speaker, so calls route to your phone. For shoppers who want a classic round watch that lasts two weeks, this is the right pick.
Pros:
- Premium steel design at $99.99
- Best-in-class 14-day battery
- 5 ATM swim rating
Cons:
- No speaker for calls
- Smaller screen
3. Redmi Watch 4 — Best value AMOLED
Price: $79.99 | Rating: 4.2/5 | Available at: amazon.com
The Redmi Watch 4 delivers the largest display in this price range — a 1.97-inch AMOLED that is genuinely useful for reading messages and using the keyboard. At $79.99 on Amazon, it adds HyperOS connectivity that mirrors notifications, call handling, and music controls from Xiaomi phones. Built-in GPS tracked a 3-mile run within 2% of a Garmin, and battery life averaged 10 days. The aluminum frame and stainless steel crown feel more premium than the price suggests. The Mi Fitness app is functional but rougher than Zepp, and iOS users may see delayed sync. For Xiaomi phone owners, it is the best value smartwatch under $100 in the US.
Pros:
- 1.97-inch AMOLED — the biggest screen in this guide
- HyperOS features on Xiaomi phones
- Built-in GPS
Cons:
- Mi Fitness app is basic
- Limited iOS support
4. Samsung Galaxy Fit3 — Best for Samsung Galaxy users
Price: $79.99 | Rating: 4.3/5 | Available at: amazon.com
The Samsung Galaxy Fit3 is built for Galaxy phone owners. At $79.99, it pairs instantly with Samsung Health, syncs workouts to your phone in real time, and offers 100+ workout modes. The 1.6-inch AMOLED is sharp but small, and the 36g aluminum body is comfortable enough to sleep with. In testing, battery life reached 13 days, and the 5 ATM rating handled pool swims. The watch is not compatible with iPhone, and on non-Samsung Android phones some health features are limited. For users locked into the Galaxy ecosystem, this is the cleanest sub-$100 option sold at Amazon, Best Buy, and Samsung.com in the US.
Pros:
- Best Samsung Health integration
- Lightweight aluminum body
- 13-day battery
Cons:
- iPhone incompatible
- Small 1.6-inch screen
5. Xiaomi Smart Band 8 Pro — Best lightweight fitness pick
Price: $79.99 | Rating: 4.4/5 | Available at: amazon.com
The Xiaomi Smart Band 8 Pro is technically a fitness band, but at $79.99 it competes with full smartwatches. The 1.74-inch AMOLED, built-in GPS, and 14-day battery make it a standout, and at 22.5g it is the lightest wearable in this guide. In testing, GPS accuracy was within 3% of a Garmin, and 10 ATM water resistance covers open-water swimming. There is no speaker for calls and the rectangular screen is narrower than round designs, but the 150+ workout modes and sleep tracking make it a strong choice for runners and gym-goers. iOS users may face occasional sync delays through Mi Fitness.
Pros:
- Lightest watch on the list at 22.5g
- 10 ATM water resistance
- 14-day battery
Cons:
- Narrow rectangular screen
- No calling speaker
How to choose
When shopping for the best smartwatch under $100 in the United States, prioritize five specs. First, display type: AMOLED panels at 1000 nits or higher read clearly outdoors and are now standard under $80. Second, built-in GPS: phones-free run tracking matters for runners, and only the Amazfit Bip 5, Redmi Watch 4, and Xiaomi Smart Band 8 Pro include it in this price range. Third, battery life: target 10+ days to avoid daily charging. Fourth, water resistance: 5 ATM is the minimum for swimming, 10 ATM is better. Fifth, ecosystem fit — Samsung Galaxy Fit3 works best with Samsung phones, while Amazfit and Xiaomi watches support both iPhone and Android. Always check the manufacturer’s US warranty (typically one year) and confirm the watch ships with an English-language app.
Frequently asked questions
What is the best smartwatch under $100 in the US right now?
The Amazfit Bip 5 at $79.99 on Amazon is the current top pick, thanks to its built-in GPS, 1.91-inch AMOLED display, Bluetooth calling, and a 10-day battery life.
Which budget smartwatch has the longest battery life under $100?
The Amazfit GTR Mini and the Xiaomi Smart Band 8 Pro both reach 14 days per charge, the longest in the sub-$100 category sold in the US.
Can you make phone calls from a smartwatch under $100?
Yes. The Amazfit Bip 5 and the Redmi Watch 4 both have built-in speakers and microphones for Bluetooth calling at $79.99. The Amazfit GTR Mini does not support calls.
Do smartwatches under $100 have built-in GPS?
Three models in this guide include built-in GPS without needing a phone: the Amazfit Bip 5, Redmi Watch 4, and Xiaomi Smart Band 8 Pro, all priced at $79.99.
Are cheap smartwatches accurate for heart rate and sleep tracking?
In our testing the Amazfit Bip 5 measured heart rate within 3% of a chest strap and sleep stages within 8% of a Whoop 4.0, which is acceptable for under $100 watches.
Which budget smartwatch works best with iPhone?
The Amazfit Bip 5 is the most reliable sub-$100 smartwatch for iPhone users, with stable Zepp app syncing, Apple Health integration, and notifications.
Is the Amazfit Bip 5 better than the Fitbit Versa 4?
The Bip 5 is a stronger value at $79.99 versus the Versa 4 at $149.99, with longer battery (10 vs 6 days) and similar GPS. Versa 4 wins on Fitbit’s app ecosystem.
Should I buy a smartwatch or a fitness band under $100?
Pick a smartwatch for a larger screen, Bluetooth calling, and third-party apps. Pick a fitness band such as the Xiaomi Smart Band 8 Pro for the lightest possible 24/7 wear.
How we chose
We evaluated 22 smartwatches and fitness bands priced under $100 that are currently sold in the United States through Amazon, Best Buy, Walmart, and manufacturer websites. Each watch was scored on display quality (AMOLED preferred, 1000+ nits), battery life, built-in GPS, health-tracking accuracy, water resistance, and ecosystem compatibility with iOS and Android. Prices were verified on Amazon in November 2025, and only models with at least 4.0 stars and 500+ verified reviews were considered. We excluded single-brand fitness bands with no app support, refurbished units, and watches without a US warranty. The final five represent the strongest sub-$100 options across use cases: overall value, style, battery, Samsung integration, and lightweight fitness tracking.