Best Underarm Baby Thermometers of 2025

Phoebe Cooper Avatar
Phoebe Cooper
Last Updated: 2 Feb 2025

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Underarm baby thermometers are a reliable and convenient way to monitor your baby's temperature. These thermometers are designed to be used in the underarm area, making them less invasive and more comfortable for your baby. They are easy to use and provide accurate temperature readings within seconds. With features like fever alerts and memory recall, these thermometers are a must-have for any parent looking to keep their baby healthy and comfortable. Whether you are a new parent or an experienced one, underarm baby thermometers are a great investment for your family's wellbeing.

At a Glance: Our Top Picks

Braun Age Precision Digital Thermometer for All Ages Cover #TOP 1
Braun Age Precision Digital Thermometer for All Ages
ftb score rating icon 9.9
Berrcom Digital Thermometer for All Ages Cover #TOP 2
Berrcom Digital Thermometer for All Ages
ftb score rating icon 9.8
Tommee Tippee FlexiPen Thermometer for Babies Cover #TOP 3
Tommee Tippee FlexiPen Thermometer for Babies
ftb score rating icon 9.6

Top 10 Underarm Baby Thermometers

Braun Age Precision Digital Thermometer for All Ages

PRT2000EU
Weiß
PRT2000EU
Braun Age Precision Digital Thermometer for All Ages Cover
Braun Age Precision Digital thermometer - Digital Stick for Multi-Site Usage - Orally, Rectally or Underarm - Baby and Infant Friendly - #1 Brand among doctors(1) - PRT2000

The Braun Age Precision Thermometer is designed for quick and accurate temperature readings, allowing you to monitor your family's health with ease. Its Age Precision Technology adjusts fever definitions based on your child's age, ensuring you understand the results clearly. You can use it orally, rectally, or under the arm, making it versatile for different needs. With a measurement time of just 8 seconds, it provides convenience when you're in a hurry, and its flexible tip ensures comfort during use.

What We Like
Quick 8-second measurements
Age-specific fever indication
Multi-site usage
Gentle flexible tip
Clinically validated brand
#TOP 2

Berrcom Digital Thermometer for All Ages

978e3c03-0e8f-4ba9-a36f-3066aab7c9fa
White-Navy Blue
Berrcom Digital Thermometer for All Ages Cover
Berrcom Digital Thermometer for Adults and Kids Oral and Underarm Thermometer Rectal Thermometer for Fever, Babies Medical Thermometer with °C/°F Switch and Fever Alarm

The Berrcom Digital Thermometer is designed for convenience and accuracy, making it ideal for all ages. Its waterproof tip ensures comfort during testing and is easy to clean, promoting hygiene. With fast and accurate readings, you can trust the results for your family’s health. The switchable units allow you to easily toggle between Celsius and Fahrenheit, adapting to your preferences. Additionally, the memory function recalls the last reading, helping you keep track of temperature changes effortlessly.

What We Like
Waterproof tip for easy cleaning
Fast and accurate readings
Switchable units for convenience
Memory function for last reading
#TOP 3

Tommee Tippee FlexiPen Thermometer for Babies

423040
White
1 Count (Pack of 1)
Tommee Tippee FlexiPen Thermometer for Babies Cover
Tommee Tippee FlexiPen Thermometer for Underarm or Under Tongue, Fast and Accurate 8 Second Readings, Flexible Tip and Memory Function, 0m+

The Tommee Tippee FlexiPen is an easy-to-use digital thermometer suitable for newborns, allowing you to measure body temperature from either the mouth or underarm. With fast and accurate readings displayed in just 8 seconds, you can effortlessly switch between Celsius and Fahrenheit. The flexible tip is designed to be gentle on your baby's delicate skin, ensuring a comfortable experience. Additionally, the internal memory function helps you track temperature changes over time, making it convenient for monitoring your little one's health.

What We Like
Fast 8-second readings
Flexible and gentle tip
Memory function for tracking
Fever alert feature
Easy to switch between units
#TOP 4

Digital LCD Thermometer for All Ages

DT007
Digital LCD Thermometer for All Ages Cover
Digital LCD Thermometer - Medical Oral, Under Arm, Baby & Adult Thermometer - Fast & Accurate Readings

The Generic Digital LCD Thermometer is designed for versatile use, allowing you to take oral, underarm, and rectal measurements. This feature makes it ideal for babies, children, and adults alike. You will appreciate its fast and accurate readings, providing you with precise temperature results in just seconds. Family-friendly in design, it ensures gentle use on sensitive skin, making it safe for everyone. The easy-to-read display features a large LCD screen, allowing you to see temperature readings clearly, even in low light conditions.

What We Like
Versatile for all ages
Quick and accurate readings
Gentle on sensitive skin
Large easy-to-read display
Compact and portable design
#TOP 5

Berrcom Digital Thermometer for All Ages

DT-007
White, Blue
Berrcom Digital Thermometer for All Ages Cover
Berrcom Digital Thermometer for Adults and Kids Oral and Underarm Thermometer Rectal Thermometer for Fever, Babies Medical Thermometer with Fever Alarm

The Berrcom Digital Thermometer offers a range of features that make it an essential tool for monitoring temperatures in both children and adults. Its waterproof tip ensures comfort during use and simplifies cleaning. You will appreciate the fast and accurate readings, providing you with reliable information quickly. The switchable units allow you to effortlessly toggle between Celsius and Fahrenheit, making it user-friendly. Additionally, the memory function recalls your last reading, which is particularly useful for tracking changes in temperature over time.

What We Like
Waterproof tip for easy cleaning
Fast and accurate measurements
Switchable between Celsius and Fahrenheit
Remembers last reading
Suitable for all ages
#TOP 6

Peppa Pig Digital Thermometer for Kids

5060215551402
Multicolour
1 Count (Pack of 1)
Peppa Pig Digital Thermometer for Kids Cover
Peppa Pig Digital Thermometer | Oral, Underarm use| Large LCD | 10 Second Reading | Fever Alarm | Flexible Tip | Last Temperature Recall | CE Certified | Calms Kids | Made by Jellyworks

The Peppa Pig Thermometer is designed to make taking your child's temperature a comforting experience. It offers quick readings in just 10 seconds, so you won't have to wait long when your little one is feeling unwell. The flexible tip ensures a gentle touch, making it suitable for both oral and underarm use. Additionally, the fever alarm alerts you if a high temperature is detected, helping you keep a close eye on your child's health. With last temperature recall, you can easily track changes in their condition.

What We Like
Fast 10-second readings
Flexible and gentle tip
Fever alarm feature
Calms kids during use
#TOP 7

Digital Thermometer for Adults and Kids

DTLND
Digital Thermometer for Adults and Kids Cover
Digital Thermometer, Ideal for Adults and Kids, Baby Thermometer Newborn, Thermometers Temperature can be used orally, under arm and rectally. Digital Thermometer & Storage Case Includes Battery

The LND GIFTS Digital Thermometer is an essential tool for monitoring body temperature in both adults and children. It is designed to provide accurate readings in just seconds, ensuring you can quickly assess health when needed. Ideal for tracking basal body temperature, it supports family planning and menstrual cycle monitoring. Safe for newborns, it allows for easy use, giving you peace of mind when checking your child's health. Whether used orally or underarm, this thermometer is perfect for home use or on the go.

What We Like
Quick and accurate readings
Safe for newborns and kids
Ideal for family planning
Easy to use
#TOP 8

Life Digital Thermometer with Audible Beep

LIFE
L595
White
Life Digital Thermometer with Audible Beep Cover
Digital Thermometer with Fast 30 Second Reading - for Oral, Underarm, Rectal Temperature - for Adults & Kids - Audible Beep - by Life

The Life Digital Thermometer offers high precision with a fast 30-second reading, ensuring clinical accuracy for your temperature checks. You will appreciate the audible beep that signals when the reading is complete, making it simple to monitor your health. This thermometer is suitable for all ages and can be used orally, underarm, or rectally, providing versatility for the whole family. Additionally, the switchable Centigrade or Fahrenheit feature allows you to choose your preferred temperature scale for convenience.

What We Like
Fast 30-second readings
Audible beep for notifications
Suitable for all ages
Switchable temperature scales
#TOP 9

Safe + Sound Digital Thermometer for All Ages

SA8099
White
One Size
Safe + Sound Digital Thermometer for All Ages Cover
Safe + Sound Digital Thermometer for Adults, Children and Babies Oral, Underarm or Rectal Temperature Readings. Batteries Supplied.

The Safe + Sound Thermometer is designed for easy and accurate temperature readings for adults, children, and babies. Its digital screen allows you to read temperatures effortlessly, ensuring you can monitor health with confidence. The thermometer is versatile, offering oral, underarm, or rectal measurements, making it suitable for various needs. Supplied with a battery, the thermometer is ready to use right out of the box, providing convenience when you need it most.

What We Like
Easy-to-read digital screen
Suitable for all ages
Versatile measurement options
Ready to use with battery
#TOP 10

Reliance Medical Baby Shark Digital Thermometer

X0050-CASE OF 200
White/Blue
Reliance Medical Baby Shark Digital Thermometer Cover
Reliance Medical Baby Shark Waterproof Kids Flexible Digital Thermometer With Optical And Sound Fever Alert, Temperature Checker Measurement For Babies Children

The Baby Shark Thermometer by Reliance Medical is designed for quick and accurate temperature readings for infants and children. You can use it orally or under the arm, making it a safe and non-invasive option for checking your child's fever. With a reading time of under 10 seconds, it provides fast results when you need them most. Additionally, the thermometer features an auto-off function to save battery life and a memory function to recall previous readings, adding convenience to your monitoring routine.

What We Like
Fast temperature readings
Safe, non-invasive use
Memory function for previous results
Auto-off to save battery
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Are underarm thermometers accurate for babies?

Digital thermometers. These thermometers use electronic heat sensors to record body temperature. They can be used in the rectum (rectal), mouth (oral) or armpit (axillary). Armpit temperatures are typically the least accurate of the three.

2. What type of thermometer is most accurate for babies?

Rectal thermometers are the most accurate for infants, according to the AAP. Many parents find underarm thermometers or ear and forehead thermometers easier to use on their children, but for most accurate results, you should ideally follow up with a rectal reading, especially when taking a young baby's temperature.

3. What should an armpit temperature be for a baby?

A baby's normal temperature range: Under the arm is 97.5 to 99.3 degrees Fahrenheit or 36.5 to 37.4 degrees Celsius. Rectal is 100.2 degrees Fahrenheit or less, or 37.9 degrees Celsius or less.

4. How many degrees do you add when taking temperature under armpit?

An armpit temperature is generally 1 degree lower than an oral temperature. It can be nearly 2 degrees lower than a rectal temperature, which is the most accurate.

Editor's Notes

During our underarm baby thermometer research, we found 109 underarm baby thermometer products and shortlisted 10 quality products. We collected and analyzed 178,916 customer reviews through our big data system to write the underarm baby thermometers list. We found that most customers choose underarm baby thermometers with an average price of £5.58.

The underarm baby thermometers are available for purchase. We have researched hundreds of brands and picked the top brands of underarm baby thermometers, including Braun, Berrcom, Tommee Tippee, Jellyworks, LND GIFTS.

Written by
Phoebe Cooper Avatar

In 2000, Phoebe Cooper graduated from the University of London as a Pharmacist. She practiced as a Pharmacist for the better part of 2 decades. Phoebe says she has worked in the majority of health sectors and has sufficient accumulated knowledge and experience. In her practice, Phoebe published a series of eBooks, one of which is titled "Good Health Good Living."