1 / 7HealthTree JKS50F Bluetooth Pulse Oximeter
The HealthTree JKS50F pulse oximeter is listed with Bluetooth, continuous and spot-test modes, and storage for multiple users. Its reported accuracy and reliability draw mixed customer feedback, so it may suit buyers wanting trend records and app connectivity more than those prioritising established long-term performance.
At a glance
- Offers point-test readings as well as a continuous trend mode, according to the listing.
- Bluetooth connectivity and storage for up to 10 user profiles, with up to 300 dated and timed records per profile.
- The listing describes adjustable SpO2 and pulse-rate alarm thresholds, with options to mute alarms and prompts.
- Rechargeable power and an OLED display are claimed. Battery life is listed as 60 hours.
Reference price: £105.99
Price checked: 14 Nov 2026
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Pros and cons
Pros
- Multiple profiles and saved readings can help households keep separate measurement histories.
- A continuous mode and data-sharing functions may be useful for tracking readings over time.
- The listing says the alarm thresholds can be customised and audible alerts muted.
Cons
- Customer feedback reports mixed accuracy and reliability, including reports of units stopping after a few months.
- Battery runtime and charging arrangements are not fully clear from the listing, which mentions both a rechargeable device and an included nonstandard battery.
Technical specifications
9 specifications| Brand | HealthTree |
|---|---|
| Model | JKS50F |
| Screen technology listed | OLED |
|---|
| Listed accuracy | +/-1% SpO2 ; +/-1 bpm |
|---|---|
| Measuring range | 70% to 100% SpO2/ 25 to 250 bpm / 0.3-30% PI |
| Battery life listed | 60 Hours |
|---|---|
| Battery information | 1 Nonstandard Battery batteries required. (included) |
| Colour | White |
|---|---|
| Package dimensions and weight | 22.1 x 17.1 x 7.1 cm; 640 g |
What to know before buying
- The manufacturer lists spot and continuous modes, a 3–5-second reading claim, and 60-hour battery life. These are listing claims, not independently established performance. Keep still during measurement as the listing advises. The device is described for wellness monitoring and should not be treated as a substitute for medical advice.
What’s in the box
Included- Pulse oximeter
- Adult fingertip probe
- Base
- Data cable
- User manual
Who is it for?
A good fit for
- Buyers who want Bluetooth-linked records and separate profiles for several users.
- People seeking both spot readings and a continuous trend mode for home tracking.
Less suited to
- Buyers who need dependable clinical measurements or a proven long-term reliability record.
- Anyone who needs confirmed compatibility details for a particular phone or health app, which are not specified here.

Customer reviews on Amazon
- 5 stars
59% 59% - 4 stars
16% 16% - 3 stars
9% 9% - 2 stars
7% 7% - 1 star
9% 9%
Customer feedback is mixed on accuracy, with some customers finding it unsatisfactory, and on reliability, with reports of devices stopping after a few months. That matters for a monitor intended to store continuous trends and household records. The overall rating distribution is weighted towards higher ratings but includes a notable spread of lower ratings, so it does not settle questions about measurement accuracy or durability.
Mixed feedback
- Customers express mixed views about measurement accuracy.
- Reliability feedback is mixed, including reports of units ceasing to work after a few months.
Frequently asked questions
Can the HealthTree JKS50F measure continuously?
The listing describes both point-test and continuous trend-test modes, including use for overnight monitoring. This is a manufacturer claim rather than independently verified performance.
How many users and readings can it store?
The listing says it supports up to 10 user profiles, with up to 300 dated and timed data sets for each profile.
What battery life is listed?
The stated battery life is 60 hours. The details also describe an included nonstandard battery, while the feature text calls the device rechargeable, so check the selected listing for the charging and battery configuration.
What is included in the package?
The listed contents are one pulse oximeter, one adult fingertip probe, one base, one data cable and one user manual.

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