✓
Series 4 introduced the larger 40mm and 44mm Apple Watch case sizes that significantly increased usable display area compared with earlier generations.
SMARTWATCHES
Blinlx Score
99/100
ConsiderApple
Apple Watch Series 4
Apple's 2018 smartwatch generation introduced the larger 40mm and 44mm case design, an electrical heart sensor for ECG, Fall Detection and a substantially redesigned display compared with earlier Apple Watches. It remains available very cheaply on the secondhand market, but its age, battery condition and limited remaining software relevance mean it should now only be considered when the price is exceptionally low.
- Series 4 introduced the larger 40mm and 44mm Apple Watch case sizes that significantly increased usable display area compared with earlier generations.
- The Retina LTPO OLED display reaches up to 1,000 nits and remains clear enough for normal everyday use.
- Its electrical heart sensor introduced ECG functionality to the Apple Watch where the feature is supported.
- The second-generation optical heart sensor provides continuous heart-rate monitoring.
Current price
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Fair price
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Lowest seen
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If it was our money
The Apple Watch Series 4 should now only be considered when it is exceptionally inexpensive and in unusually good condition. It was an important generation, introducing the larger 40mm and 44mm design, ECG capability and Fall Detection, but age has become its biggest weakness. Battery health should be treated as a critical buying factor, and buyers should compare the asking price with Series 5, Series 6 and particularly newer SE models before purchasing. If the difference is small, buy the newer watch. When buying Series 4 secondhand, check battery health, screen condition, Digital Crown and side-button operation, charging, speakers and microphones, and make absolutely sure Activation Lock has been removed.
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Trusted buying recommendation
This product passed the Blinlx buying verification process before receiving its recommendation.
Verification ID
BLX-9730-ED71
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Current analysis
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What Blinlx checked
4 of 6 checks completed
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Check 1
Product
✓
Check 2
Specifications
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Check 3
Pricing
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Retailers
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Reviews
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Alternatives
Verification completed
67%
Recommendation confidence
1%
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Apple Watch Series 4
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Blinlx Buying DecisionStrong recommendation
Should you buy it?
YES
💚 If it was our money...
The Apple Watch Series 4 should now only be considered when it is exceptionally inexpensive and in unusually good condition. It was an important generation, introducing the larger 40mm and 44mm design, ECG capability and Fall Detection, but age has become its biggest weakness. Battery health should be treated as a critical buying factor, and buyers should compare the asking price with Series 5, Series 6 and particularly newer SE models before purchasing. If the difference is small, buy the newer watch. When buying Series 4 secondhand, check battery health, screen condition, Digital Crown and side-button operation, charging, speakers and microphones, and make absolutely sure Activation Lock has been removed.
Recommended action
BUY TODAY
Why we recommend it
- ✓Series 4 introduced the larger 40mm and 44mm Apple Watch case sizes that significantly increased usable display area compared with earlier generations.
- ✓The Retina LTPO OLED display reaches up to 1,000 nits and remains clear enough for normal everyday use.
- ✓Its electrical heart sensor introduced ECG functionality to the Apple Watch where the feature is supported.
- ✓The second-generation optical heart sensor provides continuous heart-rate monitoring.
- ✓High and low heart-rate notifications provide useful wellness information.
★ Blinlx Score
99/100
AI confidence 0.62%
£ Today's Price
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Current tracked price
↗ Fair Price
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Estimated fair market price
● Current Deal
Consider
Price status unavailable
✓ Confidence
99%
Based on available product and pricing data
↘ Lowest Seen
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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
—
Fair Price
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Lowest Seen
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Potential Saving
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Price Status
Analysed
Blinlx AI
Today's price sits close to our estimated market value.
Product overview
What is the Apple Watch Series 4?
Apple's 2018 smartwatch generation introduced the larger 40mm and 44mm case design, an electrical heart sensor for ECG, Fall Detection and a substantially redesigned display compared with earlier Apple Watches. It remains available very cheaply on the secondhand market, but its age, battery condition and limited remaining software relevance mean it should now only be considered when the price is exceptionally low.
AppleSMARTWATCHESModel Watch Series 4
Why people consider it
✓
The Retina LTPO OLED display reaches up to 1,000 nits and remains clear enough for normal everyday use.
✓
Its electrical heart sensor introduced ECG functionality to the Apple Watch where the feature is supported.
✓
The second-generation optical heart sensor provides continuous heart-rate monitoring.
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 Apple Watch Series 4?
Consider
AI confidence
1%
Confidence in the recommendation for this exact product variant.
Blinlx conclusion
Apple's 2018 smartwatch generation introduced the larger 40mm and 44mm case design, an electrical heart sensor for ECG, Fall Detection and a substantially redesigned display compared with earlier Apple Watches. It remains available very cheaply on the secondhand market, but its age, battery condition and limited remaining software relevance mean it should now only be considered when the price is exceptionally low.
✓
Why Blinlx likes it
✓
Series 4 introduced the larger 40mm and 44mm Apple Watch case sizes that significantly increased usable display area compared with earlier generations.
✓
The Retina LTPO OLED display reaches up to 1,000 nits and remains clear enough for normal everyday use.
✓
Its electrical heart sensor introduced ECG functionality to the Apple Watch where the feature is supported.
✓
The second-generation optical heart sensor provides continuous heart-rate monitoring.
!
Things to consider
•
Series 4 is now a very old Apple Watch generation and should be approached cautiously as a secondhand purchase.
•
Its age makes battery degradation one of the biggest purchasing risks.
•
Many examples have undergone years of daily charging and may require battery servicing.
•
It lacks the always-on display introduced with Series 5.
If it was our money...
The Apple Watch Series 4 should now only be considered when it is exceptionally inexpensive and in unusually good condition. It was an important generation, introducing the larger 40mm and 44mm design, ECG capability and Fall Detection, but age has become its biggest weakness. Battery health should be treated as a critical buying factor, and buyers should compare the asking price with Series 5, Series 6 and particularly newer SE models before purchasing. If the difference is small, buy the newer watch. When buying Series 4 secondhand, check battery health, screen condition, Digital Crown and side-button operation, charging, speakers and microphones, and make absolutely sure Activation Lock has been removed.
Score breakdown
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.
Confidence
1%
Price Value
0How competitive the current price appears.
Needs attentionCustomer Reviews
99The strength and consistency of buyer feedback.
ExcellentRetailer Trust
0The quality and reliability of the seller.
Needs attentionWarranty Support
0The level of protection included with the purchase.
Needs attentionProduct Value
99Overall quality and usefulness for the money.
ExcellentBlinlx explanation
This 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
- Apple
- Model
- Watch Series 4
- Product type
- SMARTWATCH
- Always On Display
- No
- Battery Life Hours
- 18
- Case Sizes
- 40mm / 44mm
- Category
- SMARTWATCHES
- Cellular Option
- Yes
- Chip
- Apple S4 SiP
- Display
- Retina LTPO OLED
- Gps
- Yes
- Maximum Brightness Nits
- 1000
- Release Year
- 2018
- SKU
- APPLE-WATCH-SERIES-4
- Status
- DISCONTINUED
- Storage Gb
- 16
- Water Resistance
- 50m
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 Apple Watch Series 4?
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...
- Series 4 introduced the larger 40mm and 44mm Apple Watch case sizes that significantly increased usable display area compared with earlier generations.
- The Retina LTPO OLED display reaches up to 1,000 nits and remains clear enough for normal everyday use.
- Its electrical heart sensor introduced ECG functionality to the Apple Watch where the feature is supported.
- The second-generation optical heart sensor provides continuous heart-rate monitoring.
- High and low heart-rate notifications provide useful wellness information.
!
Check before buying
Think twice if...
- Series 4 is now a very old Apple Watch generation and should be approached cautiously as a secondhand purchase.
- Its age makes battery degradation one of the biggest purchasing risks.
- Many examples have undergone years of daily charging and may require battery servicing.
- It lacks the always-on display introduced with Series 5.
- It has only 16GB of storage, half the capacity of Series 5 and several later generations.
B
If it was our money
“The Apple Watch Series 4 should now only be considered when it is exceptionally inexpensive and in unusually good condition. It was an important generation, introducing the larger 40mm and 44mm design, ECG capability and Fall Detection, but age has become its biggest weakness. Battery health should be treated as a critical buying factor, and buyers should compare the asking price with Series 5, Series 6 and particularly newer SE models before purchasing. If the difference is small, buy the newer watch. When buying Series 4 secondhand, check battery health, screen condition, Digital Crown and side-button operation, charging, speakers and microphones, and make absolutely sure Activation Lock has been removed.”
Verified retailer offers
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Other options
Alternatives to Apple Watch Series 4
These products may be worth considering if you want a different price, feature set or overall balance.
A
Product alternative
apple
Apple Watch Series 5
The Series 5 is a more attractive older Apple Watch because it adds an always-on display, compass and increased storage while often costing only modestly more secondhand.
Typical price
Check current price
A
Product alternative
apple
Apple Watch Series 6
Series 6 is a significantly stronger secondhand choice with a newer processor, blood-oxygen sensing and an always-on display.
Typical price
Check current price
A
Product alternative
apple
Apple Watch SE (2nd generation)
The SE 2 is substantially newer and provides a much stronger budget proposition for buyers who do not require ECG or an always-on display.
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 Apple Watch Series 4, based on the current Blinlx analysis.
Is the Apple Watch Series 4 worth buying?
The Apple Watch Series 4 should now only be considered when it is exceptionally inexpensive and in unusually good condition. It was an important generation, introducing the larger 40mm and 44mm design, ECG capability and Fall Detection, but age has become its biggest weakness. Battery health should be treated as a critical buying factor, and buyers should compare the asking price with Series 5, Series 6 and particularly newer SE models before purchasing. If the difference is small, buy the newer watch. When buying Series 4 secondhand, check battery health, screen condition, Digital Crown and side-button operation, charging, speakers and microphones, and make absolutely sure Activation Lock has been removed.
Who is the Apple Watch Series 4 best for?
Buyers who find an exceptionally cheap secondhand example. iPhone users needing only basic notifications and smartwatch functions. People wanting inexpensive heart-rate and fitness tracking.
What are the main weaknesses of the Apple Watch Series 4?
Series 4 is now a very old Apple Watch generation and should be approached cautiously as a secondhand purchase. Its age makes battery degradation one of the biggest purchasing risks.
What are the best alternatives to the Apple Watch Series 4?
The main alternatives currently identified by Blinlx are Apple Watch Series 5, Apple Watch Series 6, Apple Watch SE (2nd generation). 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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