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🌟 Track Smarter, Plan Better — Your Fertility’s New Best Friend!
The Femometer Digital Basal Body Temperature Thermometer offers clinical-grade 0.01°C accuracy to help millennial professionals precisely track ovulation and fertility. Designed for safe, hygienic use across all ages, it pairs with the Femometer app for manual data entry and automatic BBT charting, empowering natural family planning with data-driven insights. Waterproof, easy to clean, and backed by a 1-year service guarantee, this device blends precision with convenience for a confident fertility journey.














| ASIN | B07VF464QD |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | 13,858 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 4 in Fertility Thermometers |
| Brand | femometer |
| Colour | Pink |
| Connectivity Technology | Bluetooth |
| Country Of Origin | China |
| Customer Reviews | 4.2 out of 5 stars 561 Reviews |
| Display Type | LCD |
| Included Components | 1 x Thermometer, 1 x User Manual, 1 x LR41 Battery |
| Included components | 1 x Thermometer, 1 x User Manual, 1 x LR41 Battery |
| Indoor Outdoor Usage | Indoor |
| Item Length | 13.5 Centimetres |
| Lower Temperature Rating | 188.88 Degrees Fahrenheit |
| Manufacturer | Joytech Healthcare Co.,Ltd |
| Manufacturer Part Number | 3032 |
| Model Name | Femometer Basal digital thermometer |
| Model Number | 778942363209 |
| Number of Batteries | 1 LR44 batteries required. (included) |
| Outer Material | Plastic |
| Outer material | Plastic |
| Power Source | Battery Powered |
| Product Care Instructions | Wipe Clean |
| Resolution | PT is: THERMOMETER. GL is: gl_bis |
| Reusability | Rechargeable |
| Special Features | LCD display |
| Special feature | LCD display |
| Specification Met | FDA |
| Style Name | Clinical |
| UPC | 778942363209 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 100 Degrees Fahrenheit |
N**N
grest
easy to use, battery lasts l ong
O**Y
Affordable Alternative to Natural Cycles – Works Perfectly with Manual Input.
I’m a total numbers girl and love keeping track of what’s going on with my body. I’d used Natural Cycles before, but when I saw how much the subscription had shot up (ouch!) I started looking for an alternative. I went for this one after finding out about the Femometer app. This particular thermometer isn’t Bluetooth (so it doesn’t link automatically), but honestly, the app still works perfectly well with manual input. Most importantly ... it’s free! The thermometer itself is really good quality, super easy to use, and comes in a sturdy plastic case to keep it safe. It gives accurate two-decimal readings and feels well made. I have had no issues with battery life and it's super easy to clean. In terms of storage - its pretty small so slips into a bedside draw easily without taking up loads of space. Overall highly recommend! Great value for money, and I’d definitely purchase again.
L**Y
Good but time consuming
Does as it should. However the inputting into the app is time consuming and can be easily forgotten. Temp needs to be taken before you’re up and out of bed every day. They offer a ring which I opted for laterally due to ease! App is easy to use and gives you a good visual to see temp spikes etc.
B**S
The best thing I used to NOT get pregnant!
I got this thermometer, because my partner had had a vasectomy after us having a devastating loss. we decided we didn’t want any more children, so he went for a vasectomy and I purchased this so it made peace of mind for me knowing to abstain when I was ovulating. It worked a treat! Knowing how my body works is so empowering, and I highly recommend this to anybody who is trying to get pregnant or not! It’s also very handy because I know exactly when I’m due on my period too, and it has never been wrong!
M**L
It is NOT reliable
It doesn’t work, it is very variable, I take the first three temps and then average them. I would say you should use this to measure your basal body. I would return but I’m now outside the return window. I ordered a different thermometer to see if I can get a more realizable reading
D**E
Not reliable
Seems very unreliable. I take my temp 3 times in a row and it's very different (up to .13) every time. Considering it's meant to be highly accurate to track fertility, it's not very udeful
C**T
Comes with case
Love it, worked as expected comes like a clear case
S**G
Good
I had to correct my review. I have to say that the app is very much into detail and so it’s not the easiest. The free version is good but it took me a while to understand how to use it free. My advice is to pop a step by step on how to use it free as its actually great and the paid version looks amazing So I’m editing my review as it was me and not the app!
C**A
Reliable, Affordable, and Just as Good as the Expensive Brands
I’ve been using the Femometer for over 3 years now, and it has worked perfectly the entire time. I was gifted the Daysy (which costs around $300), and honestly, I would say the Femometer works just as well. The app is super user-friendly, with clear graphs and helpful data that make tracking my cycle really easy. It’s been a dependable part of my routine, and I’ve never had any issues with accuracy or syncing. For the price and performance, this product is a total win. I 100% recommend it!
K**E
Works amazing, but don’t need their app
This product is not Bluetooth compatible so don’t worry about using their application. However the temperature does work for charting BBT and discovering your fertility phases. The only downside like most BBT thermometers is how long it takes to measure your temp.
S**A
BBT
I use this every morning while trying to track ovulation. Easy to read and use, it is functional and a great price for the product. I’ve had the product for a couple months now and have not had any issues with the battery.
Y**E
Great starter thermometer
Does the job! And the app is great
H**R
First Reading Is Always Too High
My first reading showed 97.3 which I thought was pretty high, so I tested again and it was 96.81. A third time showed 96.7. Don't go with the first reading, go with the second one.
Trustpilot
3 weeks ago
4 days ago