One Step
Ovulation Test Strips, 20-Pack
7.3/10 overallFrom £4.29, around £6 for a 20-pack (sizes 10-100 available)
Budget strip-style LH tests from UK retailer Home Health, sold in selectable pack sizes from 10 to 100 for testing across a longer window each cycle.
The verdict
One Step's strips are sold in 10-100 packs and are squarely aimed at cost-per-test rather than convenience — a 20-pack works out considerably cheaper per test than digital kits. Best if your cycle needs a week or more of testing each month. Reading is manual line-comparison, so there's a small learning curve to read a faint versus positive line.
One Step's strips are squarely aimed at cost-per-test rather than convenience — a 20-pack works out considerably cheaper per test than either the Clearblue or First Response digital kits, which matters if your cycle length means you need to test for a week or more each month. Reading is manual line-comparison rather than digital, so there's a small learning curve to interpreting a faint versus positive line confidently.
Compared with Easy@Home's strips already in this category, One Step and Easy@Home are close competitors on price and format; the practical difference tends to come down to which brand's line intensity you personally find easier to read, since both use the same basic lateral-flow technology. For anyone prioritising testing volume over digital certainty, either strip brand is a reasonable choice.
Is the Ovulation Test Strips, 20-Pack worth it?
- Very low cost per test for long testing windows
- Good for irregular cycles needing extended testing
- Widely available in supermarkets and pharmacies
What are the downsides of the Ovulation Test Strips, 20-Pack?
- Manual line reading, takes practice to read confidently
- No digital confirmation
- Test strips require dipping into a urine sample cup
Specs
- Pack size
- 20 tests (10-100 pack sizes available)
- Sensitivity
- 20 mIU/ml
- Result format
- Line comparison (manual read)
- Reusable holder
- No
- Hormone detected
- LH only
How we scored it
Accuracy
How reliably the test identifies the fertile window and LH surge.
Comparable underlying sensitivity to other strip tests; line reading adds some user error risk.
Ease of Use
How simple the test is to use and read correctly.
Manual line comparison takes a cycle or two to read confidently.
Value for Money
Cost per test/cycle relative to what you get.
Lowest cost per test in the category, ideal for long testing windows.
Weighted by importance for this category — see our editorial policy for how we test.
How this review was done
We haven't used the Ovulation Test Strips, 20-Pack ourselves yet. This review is built from One Step's published specifications and product information, and scored the same way as everything else on the site. We'll update it, and the badge above, once we've tested it hands-on.
How it compares
|  |  |  | |
|---|---|---|---|---|
| Price | From £4.29, around £6 for a 20-pack (sizes 10-100 available) | £24.99 (10 tests) | £1.00 for 5 | £13.99 (50 tests) |
| Overall score | 7.3/10 | 8.1/10 | 5.8/10 | 7.3/10 |
| Pack size | 20 tests (10-100 pack sizes available) | — | 5 test strips | — |
| Sensitivity | 20 mIU/ml | — | — | 25 mIU/mL |
| Reusable holder | No | Yes, disposable test sticks | — | — |
Frequently asked questions
Is Predictor good for irregular or long cycles?+
Yes — it's aimed at cost-per-test rather than convenience, and a 20-pack works out considerably cheaper per test than the Clearblue or First Response digital kits, which matters if your cycle length means testing for a week or more each month.
How does it compare to Easy@Home?+
One Step and Easy@Home are close competitors on price and format, using the same basic lateral-flow technology — the practical difference tends to come down to which brand's line intensity you personally find easier to read. For anyone prioritising testing volume over digital certainty, either strip brand is a reasonable choice.
Is the line easy to read?+
Reading is manual line-comparison rather than digital, so there's a small learning curve to interpreting a faint versus positive line confidently, similar to other strip-based kits — you also need to dip the strip into a urine sample cup rather than midstream.
What pack sizes are available, and how sensitive is it?+
It's sold in pack sizes from 10 to 100 tests, letting you choose how much testing volume you need for a longer or shorter window each cycle, with a sensitivity of 20 mIU/ml comparable to other strip tests and no reusable holder needed.
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Reviewed by
Sepehr
Software engineer, soon-to-be dad, uncle to four — the tech-obsessed half of the two of us testing this stuff. Currently building this site with my wife, ahead of our own baby arriving.