9 Best Baby Thermometer Your Medicine Cabinet 2021

9 Best Baby Thermometer Your Medicine Cabinet 2021

While parents might suspect that their babies have a fever simply by feeling their foreheads, you’ll still want a reliable baby thermometer in your medicine cabinet to help you take the baby’s temperature.

Why? Although most fevers in babies are triggered by viral infections and will quickly their course, a fever can also potentially be more serious, so a baby thermometer that gives you an accurate reading is essential.

“Fevers can seem scary, but they are a natural immune response to infection and most can be safely managed at home,” says Steph Lee, M.D., a pediatrician specializing in preventive medicine and spokesperson for the American Academy of Pediatrics (AAP).

If your baby is under 3 months old and has a fever of 100.4 degrees Fahrenheit or higher, call your doctor right away. For babies older than 3 months, call your pediatrician if you measure a fever of 101.5 degrees F or higher. 

“If [a fever] continues for too long or runs too high, it’s time to ask for help,” says Dr. Lee. “Contact a health care provider if you think your baby is overly irritable and unable to be comforted, lethargic or has a higher temperature over 102 degrees F for more than a day.”

If you’re unsure, though, it’s always smart to err on the side of caution and call your doctor with any concerns you have about your baby’s health. “When in doubt, a mother’s intuition is always a good reason to seek care,” Dr. Lee says.

Baby Thermometer
Baby Thermometer

What are the different types of baby thermometers?

There are several different types of baby thermometers out there, and there are a few factors you’ll want to consider when shopping.

  • Rectal thermometers: “In newborns and kids up to 3 years of age, the AAP recommends rectal thermometers, because research shows they are the most accurate and measure the core body temperature the best,” says Dr. Lee.
  • Axillary thermometers: Also called underarm thermometers, these types of thermometers are placed against the skin in the armpit and generally work best in toddlers who can cooperate and hold the thermometer in place without moving until the thermometer beeps. This method is easier to use than a rectal thermometer, but not as accurate.
  • Ear and forehead thermometers: These types of thermometers, which are conveniently placed against your baby’s forehead or in her ear, are easier to use than a rectal thermometer, but not as accurate. You can certainly keep one in your house and use them to get a quick reading, but you will need to follow up with a rectal reading.
  • Oral thermometers: Once kids are able to cooperate — usually when they are around 3 or 4 years old — parents can use oral thermometers, which are placed under your child’s tongue. “The only downside is that the child has to keep the thermometer under their tongue for around a minute, so if this isn’t possible, parents may not get an accurate reading,” Dr. Lee says. “However, if used correctly, oral thermometers are accurate and approximate core body temperature well.”

What’s the most accurate baby thermometer for infants?

Rectal thermometers are the most accurate for infants, according to the AAP.

Many parents find axillary 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.


  • Best Rectal Baby Thermometer: Fridababy Quick-Read Rectal Thermometer
  • top Best Baby Thermometer for Families With Multiples: Kinsa QuickCare Smart Stick Thermometer
  • Best Travel Baby Thermometer: American Red Cross Quick Read Digital Thermometer
  • Best Baby Thermometer for Fussy Babies: iProven DMT-489 Dual Mode Thermometer
  • top Best Splurge-Worthy Baby Thermometer: Braun Digital Ear Thermometer
  • Best Ergonomic Rectal Thermometer: Vicks Baby Rectal Thermometer
  • Best Thermometer for Fast Results: iHealth No-Touch Forehead Thermometer

Choosing the best baby thermometer

Here are a few features you may want to look for when shopping for a baby thermometer:

  • Digital readings: Digital thermometers are the most accurate. The AAP advises against using mercury thermometers, as mercury is an environmental toxin and can be especially dangerous if the thermometer were to break.
  • Flexible tip: This feature can provide more comfort for baby when you insert a rectal thermometer.
  • Wide base: If a rectal thermometer has a wide base, you’ll have an easier time gripping the base as you’re inserting it.
  • Backlit display: This can make the thermometer easy to read when checking baby’s temperature in a dark nursery.
  • Talking thermometer: A baby thermometer that reads you the temperature may also be helpful in the middle of the night or, if the display is small and hard to read.
  • Memory: This high-tech feature can help you keep track of baby’s temperatures so you can track any trends.
  • Battery type and cover: Electronic thermometers may contain button cell batteries, which can unintentionally be swallowed by small children, so make sure battery covers are secure.

Sorting through the many different baby thermometers on the market can be overwhelming. Here, we’ve found a few highly-rated options so you can make sure you’re getting the best baby thermometer for your family.

 Baby Thermometer
Baby Thermometer


Different thermometer types take the temperature from different parts of the body, including the rectum, mouth, ear, forehead, and underarm.

The age of the child and type of thermometer can affect the accuracy of a reading.

Johns Hopkins Medicine offer the following advice on using thermometers on infants:

  • use a digital thermometer
  • avoid using a strip thermometer for babies
  • avoid mercury thermometers as mercury is very toxic
  • use a rectal thermometer for infants under 3 years
  • temporal artery thermometers, which measure forehead temperature, are also very accurate and may provide less discomfort for young infants
  • underarm thermometers can give an idea of temperature but are less accurate
  • ear thermometers may not be accurate enough in newborns
  • use the thermometer according to the instructions

People may find an oral thermometer harder to use in younger children, as it requires placing the thermometer under the tongue.

top People can also look for a thermometer that has Food and Drug Administration (FDA) approval.

People may also want to consider certain features that can make a thermometer easier to use:

  • a flexible tip can make a rectal thermometer more comfortable for an infant
  • a backlit display to make it easier to read at night, or one that speaks the temperature
  • a memory feature to track temperatures
  • a fast response to make it easier to take a temperature quickly
  • a multi-type thermometer to provide multiple readings, use for all the family or continued use as the child gets older
  • an easy to clean to prevent bacteria from spreading
  • an alarm or color code feature that indicates when a temperature is too high for each age group

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List of the best infant thermometers

Please note, the writer has not tested these products. All information is research-based.

1. Fridababy Quick-Read Rectal Thermometer

Fridababy infant rectal Baby Thermometer

The Fridababy is a rectal thermometer, making it a good option for newborns. According to the product website, this thermometer:

  • provides readings within 10 seconds
  • includes a stopper to prevent inserting the probe too far
  • has a back-lit display for easy nighttime readings
  • is BPA- and latex-free
  • is water-resistant for cleaning
  • has a memory function to help track temperatures and stores 10 previous readings
  • comes with a carry case

Multiple reviews on the product website state it is quick, accurate, and easy to use.

Fridababy Quick-Read Rectal Thermometer is available for purchase online.

2. Kinsa QuickCare Smart Thermometer

Kinsa QuickCare infant  Baby Thermometer

The Kinsa QuickCare is an oral, rectal, and underarm thermometer. It also connects to an app to provide personalized advice on steps to take, depending on the reading.

According to the product website, this thermometer:

  • provides a reading in 8 seconds or less
  • has FDA approval for safety and accuracy in all ages
  • has a flexible tip for insertion
  • offers a backlit display
  • takes readings in °F or °C
  • has a replaceable battery
  • comes with a storage pouch

The Kinsa QuickCare Smart Thermometer is available for purchase online.

3. iProven DMT-489 Dual Mode Thermometer

iProven infant  Baby Thermometer

The iProven Dual Mode is an ear and forehead thermometer. According to the product website, this thermometer:

  • has a forehead option suitable for all ages and provides a reading in 3-5 seconds
  • has an ear thermometer option suitable for 6-month-old babies and provides a reading in 1-2 seconds
  • takes readings in °F or °C
  • has a memory function that stores up to 20 readings
  • has a backlit display
  • beeps and shows a red light to indicate a fever
  • durable materials

Customers have a 30-day money-back guarantee.

The iProven DMT-489 Dual Mode Thermometer is available for purchase online.

4. Exergen Temporal Artery Thermometer

Exergen infant  Baby Thermometer

The Exergen thermometer swipes across the forehead to take a reading. According to the product website, this thermometer:

  • has non-invasive infrared technology
  • is suitable for use on all ages
  • is ideal for use on a sleeping infant or for an ear infection
  • recommended by doctors

The Exergen Temporal Artery Thermometer is available for purchase online.

5. Vicks Baby Rectal Thermometer

Vicks Baby Rectal Baby Thermometer

The Vicks rectal thermometer has a short, flexible probe for safe and easy insertion. According to the company, this thermometer:

  • is compact and easy to use
  • has a large backlit display
  • is easy to clean
  • best is waterproof
  • is suitable for newborns and above
  • gives a reading in 10 seconds

The Vicks Baby Rectal Thermometer is available for purchase online.

6. Braun ThermoScan7 Ear Thermometer

Braun infant  Baby Thermometer

The Braun ThermoScan7 is an ear thermometer that allows people to set the child’s age to get a fever reading specific to that age group. According to the product website, the thermometer:

  • offers age precision settings for 0-3 months, 3-36 months, or 36 months+
  • is recommended by pediatricians
  • has a red, yellow, or green color-coded display for quick and easy interpretation of the results
  • top a pre-warmed tip for Accura has a light and beep to show accurate positioning
  • has a front display and night light
  • stores previous nine readings
  • comes with BPA- and latex-free disposable filters for hygiene

The Braun ThermoScan7 Ear Thermometer is available for purchase online.

7. Safety 1st Rapid Read 3-in-1 Thermometer

Safety infant  Baby Thermometer

The Safety 1st thermometer is an oral, rectal, and underarm thermometer, so it could be a good option to suit multiple family members or adapt as an infant grows.

According to the product website, this thermometer:

  • provides an accurate reading in 8 seconds
  • beeps to indicate when a reading is complete
  • has a flexible tip for rectal use
  • has a gauge to help prevent over inserting
  • comes with a long-life battery
  • includes a storage case

The Safety 1st Rapid Read 3-in-1 Thermometer is available for purchase online.

8. American Red Cross Quick Read Digital Thermometer

American Red Cross infant  Baby Thermometer

The American Red Cross thermometer provides quick and accurate rectal, underarm, or oral readings. According to the company, this thermometer:

  • provides an accurate reading in under 10 seconds
  • has a flexible tip for comfort
  • includes a protective cover to keep thermometer clean between uses

The American Red Cross Quick Read Digital Thermometer is available for purchase online.

9. Kamsay Digital Thermometer

Kamsay Digital  Baby Thermometer for infants

The Ramsay Digital is a waterproof, easy to clean rectal thermometer. According to the product website, this thermometer:

  • delivers 100% accurate readings in 10 seconds
  • is FDA-certified
  • has a soft, flexible tip for comfort
  • has a large display with light
  • takes readings in °F or °C
  • is waterproof
  • has a fever alarm
  • comes with a spare battery and a 1-year warranty

The Kamsay Digital Thermometer is available for purchase online.

10. Metene LPOW Fast Reading Non-Contact Forehead Digital Thermometer

Metene LPOW Fast Reading Non-Contact Forehead Digital  Baby Thermometer

The Metene non-contact thermometer allows people to take a reading without touching an infant, making it ideal for taking temperatures without waking a sleeping child. According to the product website, this thermometer

  • takes a reading within 2 inches of the forehead
  • provides a reading in 1 second
  • is FDA-certified
  • provides accurate readings
  • stores 50 readings
  • is suitable for use on all ages
  • has the option to choose between fever alert and mute mode
  • has a red, yellow, and green color system to show fever
  • takes readings in °F or °C
  • can also check food, liquid, or room temperatures
Baby Thermometer
Baby Thermometer

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