Welcare Digital Thermometer Ovulation (WDT-OV100)
Almost nothing to fail and nothing to sunset, but also almost nothing behind it if something does go wrong. The definition of an adequate floor.
Consolidated from 3 independent outlets
Where the cited sources landed, as we read them
2 of 9 research runs entered this as a product to avoid rather than a pick.
The product's own retail page carries a customer rating of 2.7 with the headline verdict 'Not worth it,' including reports of units faulting within two to four temperature readings - fatal for a device you depend on daily at the same time each morning.
Flagged 29 August 2026
Pros & cons
- ✓ A basic, honest two-decimal ovulation thermometer
- ✓ No app and no firmware surface to fail
- ✓ Dedicated ovulation mode with two-decimal basal readings
- ✓ Measures exactly what the category requires without paying for connectivity
- ✓ Purpose-built ovulation-charting digital thermometer from an established pharmacy-brand manufacturer
- ✗ Support is minimal
- ✗ No-frills; offers no reason to choose it over better-documented picks
- ✗ Bare-bones feature set
- ✗ No specialist source covers it
- ✗ Support network and track record are shallower than comparable units
The sources behind this ranking
We searched the web and YouTube for what has been published about this product, then read the articles, video transcripts and comments we found. 2 outlets wouldn't let us check their links.
3 stance not read sources
Frequently asked questions
It ranks #11 (F tier) on our consolidated basal thermometers board, drawn from 3 independent outlets.
Support is minimal. No-frills; offers no reason to choose it over better-documented picks. Bare-bones feature set. No specialist source covers it. Support network and track record are shallower than comparable units.
Ranked nearby in Basal Thermometers
S tier #1 Easy@Home Smart Basal Thermometer
S tier #2 1 of 12 research runs entered this as a product to avoid rather than a pick. iProven Digital Basal Thermometer
A tier #3 Premom Basal Body Thermometer
A tier #4 Easy@Home EBT-100B Digital Basal Thermometer
A tier #5 BabyMad Digital Basal Thermometer
B tier #6 2 of 12 research runs entered this as a product to avoid rather than a pick. Femometer Vinca II Smart Basal Thermometer
C tier #7 1 of 12 research runs entered this as a product to avoid rather than a pick. Beurer OT20 Basal Thermometer
D tier #8 8 of 12 research runs entered this as a product to avoid rather than a pick. Daysy
D tier #9 Venus Basal Thermometer
F tier #10 2 of 11 research runs entered this as a product to avoid rather than a pick.