1 / 7Clearblue Advanced Fertility Monitor 81456584
Clearblue Advanced Fertility Monitor 81456584 is a touchscreen device for tracking fertility and pregnancy test results using compatible sticks, which are sold separately. It tracks estrogen and LH, records cycle information and displays a summary of up to six cycles.
At a glance
- The monitor is designed to track estrogen and LH and identify High and Peak fertility days.
- Its touchscreen records fertility information and supports a calendar view and a summary of up to six cycles.
- The listing says the monitor can also be used for pregnancy testing with compatible pregnancy test sticks.
Reference price: £135.00
Price checked: 13 Nov 2026
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Pros and cons
Pros
- Combining estrogen and LH tracking is intended to identify more fertile days than tests that detect LH alone.
- The stored cycle summaries and calendar can help users review recorded cycle information over time.
- It can be used with compatible fertility and pregnancy test sticks.
Cons
- Test sticks are not included, so the device cannot be used for testing without separately obtaining compatible Clearblue Advanced Fertility Monitor sticks.
Technical specifications
9 specifications| Brand | Clearblue |
|---|---|
| Model | 81456584 |
| Format | Digital Device |
| Dimensions listed | 5.4 x 12.1 x 16.5 cm; 20 g |
|---|---|
| Batteries | 2 AA batteries required. |
| Hormones tracked | Tracks 2 key fertility hormones – designed to detect all your fertile days |
|---|---|
| Fertility test accuracy claim | 99% accurate at detecting the LH surge |
| Pregnancy test accuracy claim | over 99% accurate at detecting pregnancy from the day your period is due |
| Display and cycle record | Easy to use touch screen display with personalised 6-cycle summary chart |
What to know before buying
Listing details to confirm
The listing says the device detects fertility indicators and LH surge, while customer feedback includes reports that it does not detect ovulation. Customer experiences also differ on accuracy and value. Testing frequency is described by customers as once daily, so this may not suit people seeking more frequent readings. Manufacturer performance and pregnancy-detection figures are claims, not independently verified here.
Who is it for?
A good fit for
- People who want to track estrogen and LH together and review cycle information on a device.
- Users willing to buy compatible fertility and pregnancy test sticks separately.
Less suited to
- Buyers who want a monitor supplied with test sticks.
- People seeking multiple tests per day, based on customer feedback describing once-daily testing.
Customer reviews on Amazon
- 5 stars
70% 70% - 4 stars
7% 7% - 3 stars
6% 6% - 2 stars
4% 4% - 1 star
13% 13%
Customer feedback is mixed on accuracy, effectiveness, quality, stress and value. Some customers say the monitor worked well or compared favourably with phone apps, while others disagree on its accuracy and consider the cost too high. Feedback also reports once-daily testing and disagreement about whether it detects ovulation. These points matter for buyers considering its hormone tracking and cycle summaries, but do not establish performance for any individual user.
Mixed feedback
- Customers differ on the monitor's accuracy and effectiveness.
- Feedback is divided on value for money and product quality.
- Some customers report successful use, while others express dissatisfaction.
- Customers report a limitation of once-daily testing and disagree about ovulation detection.
Frequently asked questions
Are test sticks included?
No. The listing states that fertility and pregnancy test sticks are sold separately.
Which hormones does the monitor track?
The listing says it tracks estrogen and luteinising hormone (LH).
Can it be used for pregnancy testing?
Yes, with compatible Clearblue Advanced Fertility Monitor Pregnancy Test Sticks, which are sold separately.
How much cycle information can it display?
The listing describes a personalised summary chart covering up to six cycles, alongside a calendar view.
Alternative options
Clearblue Advanced Digital Ovulation Tests & Pregnancy Test Combo, 10+1
£24.00
Clearblue Advanced Digital Ovulation Tests, 20
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Clearblue Digital Ovulation Tests & Pregnancy Test Combo, 10+1
£16.99
Conceive Plus Male Fertility Test - Sperm Concentration Rapid Test | Results in 5 Minutes, Easy to Use at Home & Discreet, Indicates Normal or Low Sperm Count, 1 Test Kit
£13.99
Clearblue Advanced Digital Ovulation Tests & Pregnancy Test Combo, 30+1
£42.80
Clearblue Digital Ovulation Tests, 30
£31.45
Clearblue Pregnancy Test 3X Confirmation Combo Pack, 3
£11.90
Clearblue Advanced Digital Ovulation Tests & Pregnancy Test Combo, 10+1
£25.53
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Offer details
- For at-home self-testing and in vitro diagnostic use only. The listing says to keep the monitor and tests dry and within their stated storage temperature ranges, and to keep them out of reach of children.