The Watch S4 provides an unusually strong feature set for a mid-range smartwatch.

Blinlx Score
99/100
Xiaomi Watch S4
Xiaomi's large 2025 lifestyle and fitness smartwatch, combining a bright 1.43-inch AMOLED display, interchangeable bezel system, dual-frequency GNSS, extensive health and workout tracking, Bluetooth calling, NFC payments and long battery endurance. The Watch S4 is particularly strong for buyers who want accurate outdoor positioning, broad fitness functionality and premium-looking hardware without paying Wear OS or flagship sports-watch prices.
- The Watch S4 provides an unusually strong feature set for a mid-range smartwatch.
- Its 1.43-inch AMOLED display provides a large viewing area for workouts, notifications and health information.
- The 466 x 466 resolution produces sharp text and detailed watch faces.
- Xiaomi specifies an HBM brightness of approximately 1,500 nits.
Current price
£0
Fair price
£113
Lowest seen
£80
Today's price is £113 below our estimated fair price.
If it was our money
The Xiaomi Watch S4 is a strong value choice for buyers who want long battery endurance, a bright AMOLED display and genuinely useful fitness features without paying flagship smartwatch prices. Its L1+L5 dual-frequency GNSS is particularly impressive for the class, while more than 150 sport modes, running-form analysis, structured running courses, advanced sleep tracking, Bluetooth calling and NFC make it significantly more capable than a basic fitness tracker. The main compromises are its very large 47.3mm case, limited third-party app ecosystem, lack of ECG and the absence of premium features such as sapphire glass or full offline mapping. Buyers with smaller wrists should consider the separate Watch S4 41mm. Android users who want Google Play and deeper app functionality should instead consider Wear OS, while serious runners should compare Garmin. When priced well below those alternatives, however, the Watch S4 offers an excellent amount of hardware and fitness capability for the money.
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Verification ID
BLX-6D6E-FBE5
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Current analysis
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Verification completed
100%
Recommendation confidence
1%
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Xiaomi Watch S4
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Should you buy it?
YES
💚 If it was our money...
The Xiaomi Watch S4 is a strong value choice for buyers who want long battery endurance, a bright AMOLED display and genuinely useful fitness features without paying flagship smartwatch prices. Its L1+L5 dual-frequency GNSS is particularly impressive for the class, while more than 150 sport modes, running-form analysis, structured running courses, advanced sleep tracking, Bluetooth calling and NFC make it significantly more capable than a basic fitness tracker. The main compromises are its very large 47.3mm case, limited third-party app ecosystem, lack of ECG and the absence of premium features such as sapphire glass or full offline mapping. Buyers with smaller wrists should consider the separate Watch S4 41mm. Android users who want Google Play and deeper app functionality should instead consider Wear OS, while serious runners should compare Garmin. When priced well below those alternatives, however, the Watch S4 offers an excellent amount of hardware and fitness capability for the money.
Recommended action
BUY TODAY
Why we recommend it
- ✓The Watch S4 provides an unusually strong feature set for a mid-range smartwatch.
- ✓Its 1.43-inch AMOLED display provides a large viewing area for workouts, notifications and health information.
- ✓The 466 x 466 resolution produces sharp text and detailed watch faces.
- ✓Xiaomi specifies an HBM brightness of approximately 1,500 nits.
- ✓Peak display brightness can reach approximately 2,200 nits under supported conditions.
★ Blinlx Score
99/100
AI confidence 0.87%
£ Today's Price
£0
Current tracked price
↗ Fair Price
£113
£113 below fair value
● Current Deal
Buy
Price status unavailable
✓ Confidence
99%
Based on available product and pricing data
↘ Lowest Seen
£80
Lowest tracked price
Price Intelligence
Is today's price worth paying?
Blinlx compares today's price with our fair value estimate and the lowest verified price we've seen.
Current Price
£0
Fair Price
£113
Lowest Seen
£80
Potential Saving
£113
Price Status
Analysed
Today's price is approximately £113 below our estimated fair market value, making it one of the stronger buying opportunities we've analysed.
Product overview
What is the Xiaomi Watch S4?
Xiaomi's large 2025 lifestyle and fitness smartwatch, combining a bright 1.43-inch AMOLED display, interchangeable bezel system, dual-frequency GNSS, extensive health and workout tracking, Bluetooth calling, NFC payments and long battery endurance. The Watch S4 is particularly strong for buyers who want accurate outdoor positioning, broad fitness functionality and premium-looking hardware without paying Wear OS or flagship sports-watch prices.
Why people consider it
Its 1.43-inch AMOLED display provides a large viewing area for workouts, notifications and health information.
The 466 x 466 resolution produces sharp text and detailed watch faces.
Xiaomi specifies an HBM brightness of approximately 1,500 nits.
Blinlx quick take
This overview is based on the exact product variant analysed by Blinlx, including its model, available specifications and current market position.
Blinlx AI verdict
Should you buy the Xiaomi Watch S4?
AI confidence
1%
Confidence in the recommendation for this exact product variant.
Blinlx conclusion
Xiaomi's large 2025 lifestyle and fitness smartwatch, combining a bright 1.43-inch AMOLED display, interchangeable bezel system, dual-frequency GNSS, extensive health and workout tracking, Bluetooth calling, NFC payments and long battery endurance. The Watch S4 is particularly strong for buyers who want accurate outdoor positioning, broad fitness functionality and premium-looking hardware without paying Wear OS or flagship sports-watch prices.
Why Blinlx likes it
The Watch S4 provides an unusually strong feature set for a mid-range smartwatch.
Its 1.43-inch AMOLED display provides a large viewing area for workouts, notifications and health information.
The 466 x 466 resolution produces sharp text and detailed watch faces.
Xiaomi specifies an HBM brightness of approximately 1,500 nits.
Things to consider
The main Watch S4 is physically large.
Its 47.3mm case may overwhelm smaller wrists.
Users wanting a compact Xiaomi smartwatch should consider the separate Watch S4 41mm.
The proprietary software ecosystem is much smaller than Wear OS or Apple watchOS.
If it was our money...
The Xiaomi Watch S4 is a strong value choice for buyers who want long battery endurance, a bright AMOLED display and genuinely useful fitness features without paying flagship smartwatch prices. Its L1+L5 dual-frequency GNSS is particularly impressive for the class, while more than 150 sport modes, running-form analysis, structured running courses, advanced sleep tracking, Bluetooth calling and NFC make it significantly more capable than a basic fitness tracker. The main compromises are its very large 47.3mm case, limited third-party app ecosystem, lack of ECG and the absence of premium features such as sapphire glass or full offline mapping. Buyers with smaller wrists should consider the separate Watch S4 41mm. Android users who want Google Play and deeper app functionality should instead consider Wear OS, while serious runners should compare Garmin. When priced well below those alternatives, however, the Watch S4 offers an excellent amount of hardware and fitness capability for the money.
Why Blinlx scored it 99
Each part of the score considers a different area of the buying decision, from the current price to retailer reliability and after-sales protection.
How competitive the current price appears.
Needs attentionThe strength and consistency of buyer feedback.
ExcellentThe quality and reliability of the seller.
Needs attentionThe level of protection included with the purchase.
Needs attentionOverall quality and usefulness for the money.
ExcellentThis score currently reflects the confidence and completeness of Blinlx canonical product knowledge. Live price, retailer and offer evidence will strengthen the assessment as it becomes available.
Product details
Specifications
The key specifications Blinlx identified for this exact product variant.
- Brand
- Xiaomi
- Model
- Watch S4
- Product type
- SMARTWATCH
- Always On Display
- Yes
- Aod Battery Days
- 5
- Bluetooth Calling
- Yes
- Case Size
- 47.3mm
- Category
- SMARTWATCHES
- Display
- AMOLED
- Display Resolution
- 466 x 466
- Display Size
- 1.43-inch
- Dual Frequency Gps
- Yes
- Gps
- Yes
- Maximum Brightness Nits
- 2200
- Microphone
- Yes
- Nfc
- Yes
- Release Year
- 2025
- SKU
- XIAOMI-WATCH-S4
- Smartwatch Battery Days
- 15
- Speaker
- Yes
- Status
- CURRENT
- Water Resistance
- 5ATM
Specifications are based on the product information available when this Blinlx report was generated. Always confirm important details with the retailer before purchasing.
Buying guidance
Who should buy Xiaomi Watch S4?
A straightforward look at who this product may suit and where you should pause before spending your money.
A good fit
Consider this product if...
- The Watch S4 provides an unusually strong feature set for a mid-range smartwatch.
- Its 1.43-inch AMOLED display provides a large viewing area for workouts, notifications and health information.
- The 466 x 466 resolution produces sharp text and detailed watch faces.
- Xiaomi specifies an HBM brightness of approximately 1,500 nits.
- Peak display brightness can reach approximately 2,200 nits under supported conditions.
Check before buying
Think twice if...
- The main Watch S4 is physically large.
- Its 47.3mm case may overwhelm smaller wrists.
- Users wanting a compact Xiaomi smartwatch should consider the separate Watch S4 41mm.
- The proprietary software ecosystem is much smaller than Wear OS or Apple watchOS.
- There is no Google Play Store application ecosystem.
If it was our money
“The Xiaomi Watch S4 is a strong value choice for buyers who want long battery endurance, a bright AMOLED display and genuinely useful fitness features without paying flagship smartwatch prices. Its L1+L5 dual-frequency GNSS is particularly impressive for the class, while more than 150 sport modes, running-form analysis, structured running courses, advanced sleep tracking, Bluetooth calling and NFC make it significantly more capable than a basic fitness tracker. The main compromises are its very large 47.3mm case, limited third-party app ecosystem, lack of ECG and the absence of premium features such as sapphire glass or full offline mapping. Buyers with smaller wrists should consider the separate Watch S4 41mm. Android users who want Google Play and deeper app functionality should instead consider Wear OS, while serious runners should compare Garmin. When priced well below those alternatives, however, the Watch S4 offers an excellent amount of hardware and fitness capability for the money.”
Verified retailer offers
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Cheapest verifiedXIAOMI Watch S4 Smartwatch, Fitness Tracker, 1.43 AMOLED, 15 days battery life
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Other options
Alternatives to Xiaomi Watch S4
These products may be worth considering if you want a different price, feature set or overall balance.
Product alternative
amazfit
Amazfit Balance 2
A more sports-focused value alternative with sapphire glass, offline maps, longer GPS endurance and deeper multisport capability while retaining strong battery life.
Typical price
Check current price
Product alternative
amazfit
Amazfit Active 2
A smaller and lighter affordable alternative for buyers who prioritise comfort, navigation and everyday fitness over the Watch S4's larger display and Xiaomi ecosystem integration.
Typical price
Check current price
Product alternative
oneplus
OnePlus Watch 3
A much stronger application-focused Android alternative with Wear OS, Google Maps, Google Wallet and Google Play, although its battery endurance is considerably shorter.
Typical price
Check current price
Product alternative
huawei
Huawei Watch GT 5 Pro
A more premium alternative with titanium or ceramic construction, stronger health features and longer endurance, but typically at a higher purchase price.
Typical price
Check current price
Alternative recommendations are based on the product information available when this report was generated. Compare the exact specifications and condition before buying.
Buyer questions
Frequently asked questions
Straightforward answers to common questions about Xiaomi Watch S4, based on the current Blinlx analysis.
Is the Xiaomi Watch S4 worth buying?
The Xiaomi Watch S4 is a strong value choice for buyers who want long battery endurance, a bright AMOLED display and genuinely useful fitness features without paying flagship smartwatch prices. Its L1+L5 dual-frequency GNSS is particularly impressive for the class, while more than 150 sport modes, running-form analysis, structured running courses, advanced sleep tracking, Bluetooth calling and NFC make it significantly more capable than a basic fitness tracker. The main compromises are its very large 47.3mm case, limited third-party app ecosystem, lack of ECG and the absence of premium features such as sapphire glass or full offline mapping. Buyers with smaller wrists should consider the separate Watch S4 41mm. Android users who want Google Play and deeper app functionality should instead consider Wear OS, while serious runners should compare Garmin. When priced well below those alternatives, however, the Watch S4 offers an excellent amount of hardware and fitness capability for the money.
Who is the Xiaomi Watch S4 best for?
Budget-conscious smartwatch buyers. People wanting premium-looking hardware without flagship pricing. Users who want long battery endurance.
What are the main weaknesses of the Xiaomi Watch S4?
The main Watch S4 is physically large. Its 47.3mm case may overwhelm smaller wrists.
What are the best alternatives to the Xiaomi Watch S4?
The main alternatives currently identified by Blinlx are Amazfit Balance 2, Amazfit Active 2, OnePlus Watch 3. The best choice depends on your budget, priorities and intended use.
Answers are based on the product data and retailer information available when this report was generated. Check important details with the retailer before purchasing.
Blinlx Intelligence
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