Best Oral Thermometers of 2025

Elisa Drew Avatar
Elisa Drew
Last Updated: Jan 14, 2025

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Oral thermometers are a common type of medical device used to measure body temperature. They are easy to use and provide accurate readings when used correctly. These thermometers are inserted into the mouth and held under the tongue for a few seconds to measure the body's temperature. They are often preferred by parents of young children as they are non-invasive and provide quick results. Oral thermometers are also affordable and widely available in drug stores and online retailers. They are an essential tool for monitoring fever and tracking changes in body temperature.

At a Glance: Our Top Picks

Vicks SpeedRead Digital Thermometer Cover #TOP 1
Vicks SpeedRead Digital Thermometer
ftb score rating icon 9.8
Vicks ComfortFlex Digital Thermometer Cover #TOP 2
Vicks ComfortFlex Digital Thermometer
ftb score rating icon 9.7
TULUR Digital Thermometer for All Ages Cover #TOP 3
TULUR Digital Thermometer for All Ages
ftb score rating icon 9.5

Top 10 Oral Thermometers

Vicks SpeedRead Digital Thermometer

V912USV5
Green,Red,Yellow
1 Count (Pack of 1)
Vicks SpeedRead Digital Thermometer Cover
Vicks SpeedRead Digital Thermometer with Color-Coded Temperature Readings, Use as Oral Thermometer, Baby Rectal Thermometer or Under The Arm, Water Resistant, FSA and HSA Eligible

The Vicks SpeedRead Thermometer delivers quick and accurate temperature readings in just 8 seconds, making it ideal for busy parents and caregivers. The color-coded Fever InSight feature allows you to easily interpret results at a glance, with green for normal, yellow for elevated, and red for high temperatures. This versatile thermometer can be used orally, rectally for infants, or under the arm for older children and adults. Additionally, it's water-resistant for easy cleaning and comes with an automatic shut-off to extend battery life, ensuring you always have a reliable tool when needed.

What We Like
Quick 8-second readings
User-friendly design
Accurate and reliable
Color-coded backlight
Flexible for comfort
What We Don't Like
Misleading "Lo" display
Missing protective cover
#TOP 2

Vicks ComfortFlex Digital Thermometer

V966USV5
Green,Red,Yellow
Vicks ComfortFlex Digital Thermometer Cover
Vicks ComfortFlex Digital Thermometer – Accurate, Color Coded Reading in 8 Seconds – Digital Thermometer for Oral, Rectal or Under Arm Use

The Vicks Digital Thermometer offers quick and precise readings in just 8 seconds, ensuring you get the information you need without delay. The color-coded Fever InSight feature makes it easy for you to interpret temperatures at a glance, with green for normal, yellow for elevated, and red for high. Its versatile design allows for oral, rectal, or underarm use, making it suitable for everyone, from infants to adults. Additionally, the thermometer is waterproof, making cleaning simple and thorough, and it comes complete with a battery and a one-year warranty for added peace of mind.

What We Like
Fast reading time
Color-coded display
Flexible and comfortable tip
Easy to read
Accurate temperature readings
What We Don't Like
Inaccurate for some users
No case included
#TOP 3

TULUR Digital Thermometer for All Ages

GF-MT501
Light Blue
TULUR Digital Thermometer for All Ages Cover
Thermometer for Adults and Kids with 8 Seconds Fast Accurate Reading, Accurate & Safe Baby Thermometer for Oral, Rectal or Under Arm Use, Digital Thermometer with Fever Alarm, Large LCD Display

The TULUR Digital Thermometer offers quick and reliable temperature readings in just 8 seconds, ensuring you get accurate results when you need them most. The large LCD display makes it easy for you to read the results at a glance, whether you're checking a child's temperature or your own. This versatile thermometer is safe for all ages, allowing you to take measurements orally, rectally, or under the arm. Additionally, its multifunctional features include a fever alarm and memory display, making it user-friendly for both kids and the elderly.

What We Like
Fast temperature readings
Accurate measurements
Kid-friendly design
Easy to read display
Durable construction
What We Don't Like
On/off button can be tricky
Inconsistent performance over time
#TOP 4

Rongfeng 8s Fast Reading Thermometer

QT001-Blue
Blue
Rongfeng 8s Fast Reading Thermometer Cover
8s Fast Reading Oral Thermometer for Kids and Adults, Baby Digital Thermometer with 3 Color Backlit and Fever Alarm Medical FDA Basal Thermometer for Oral, Rectal, Underarm (Blue)

The Rongfeng Thermometer is designed for quick and accurate temperature readings, taking only 8 seconds to provide results. This thermometer is safe for all ages, featuring a BPA-free construction and a soft silicone tip for comfort. With its three-color backlit display, you can easily interpret your temperature at a glance; green signals normal, yellow indicates a low fever, and red means a fever. Its waterproof design allows for easy cleaning, making it convenient for use at home or on the go. This versatile thermometer can be used orally, rectally, or under the arm, ensuring you can monitor your family’s health effectively.

What We Like
Fast readings
Easy to read display
Durable design
Accurate temperature measurements
Affordable price
What We Don't Like
Limited functionality
#TOP 5

Apex Fast Read Digital Thermometer

70256
white
1 Count (Pack of 1)
Apex Fast Read Digital Thermometer Cover
Apex Large Face LCD Fast Read Digital Thermometer for Adults and Children - Instant Read Thermometer for Fever Detection with Quick 10 Second Read Time ( Packaging May Vary )

The Apex Fast Read Digital Thermometer is an oral thermometer that can accurately detect a fever within ten seconds. This instant thermometer can help users determine if they need rest or medical attention. It is a great tool for both adults and children.

What We Like
Easy to read
Fast results
Well made
Flexible probe stem
Color-coded temperature markings
What We Don't Like
Slow reading time
Hard to hear beep
#TOP 6

Juvale Disposable Thermometer Probe Covers

4332450029
White
Juvale Disposable Thermometer Probe Covers Cover
Juvale 100-Pack Disposable Digital Thermometer Probe Covers - Oral, Rectal, Armpit Temperature Reading Sheath Sleeves

Juvale Thermometer Covers are designed for effortless use, making them ideal for home or office settings. Their simple insert-and-peel design allows you to easily cover the thermometer probe, ensuring a quick and hygienic experience. With high-quality materials, these covers help maintain accurate temperature readings while protecting the thermometer from contamination. They are compatible with most digital thermometers, measuring 3.75x1 inches, so you can use them without worrying about fit. Plus, with a bulk pack of 100, you’ll always have enough on hand for regular temperature checks.

What We Like
Easy to use
Accurate temperature readings
Clean and hygienic
Good quality
Convenient for family use
What We Don't Like
Packaging could be improved
#TOP 7

femometer Oral Thermometer (Klein Blue)

DMT-2032
Blue
femometer Oral Thermometer (Klein Blue) Cover
Thermometer for Adults, Oral Thermometer for Fever, Thermometer with Fever Alert, Memory Recall, C/F Switchable, Rectum Armpit Reading Thermometer for Whole Family (Klein Blue)

The femometer Oral Thermometer is designed for safe and accurate temperature readings, helping you determine if you need rest or medical attention. Its advanced sensory probe ensures precise measurements. You’ll appreciate the included storage case, making it easy to monitor temperature changes for your entire family. The thermometer’s clear LCD screen displays results and features memory recall, low battery alerts, and an auto power-off function for convenience. It can be used orally, rectally, or in the armpit, making it suitable for all ages, including infants, children, adults, and even pets.

What We Like
Includes storage case
Accurate temperature readings
Easy to use
Battery included
Celsius and Fahrenheit options
What We Don't Like
Cycle alarm is too quiet
#TOP 8

Cuxichuxinxi Digital Thermometer

QT001-Grey
Grey
Cuxichuxinxi Digital Thermometer Cover
Cuxichuxinxi Digital Thermometer for Adults and Kids, 8s Fast Reading Baby Oral Thermometer with 3 Colors Backlit, °C/°F Switchable, Fever Alarm, Medical Basal Thermometer for Oral, Rectal, Underarm

The Cuxichuxinxi Thermometer is designed for both adults and children, ensuring safety with its BPA-free materials and soft silicone tip. With an impressive reading time of just 8 seconds, you can quickly check temperatures when it matters most. The device features a three-color backlit display, allowing you to easily identify normal, elevated, or high temperatures at a glance. Its multifunctional design includes a large LCD screen, fever alerts, and memory display for added convenience, making it user-friendly for everyone, from kids to the elderly.

What We Like
Easy to use
Accurate readings
Color-coded display
Quick reading time
High quality materials
What We Don't Like
Somewhat bulky design
#TOP 9

Berrcom Digital Thermometer

DT007
White
DT-007
Berrcom Digital Thermometer Cover
Berrcom Digital Thermometer for Adults and Kids, Oral Thermometer for Baby Rectal and Underarm Thermometer for Fever Alarm Medical Thermometer with C/F Switchable

The Berrcom Thermometer is a fast and accurate digital thermometer suitable for all ages. Its waterproof tip makes it comfortable to use for babies, children, and adults, and it is easy to clean. The thermometer provides quick and reliable readings, ensuring convenience and safety for you and your family. With its clear display, beeper alarm, and memory function, you can easily monitor temperature changes. The thermometer also has a switchable unit feature, allowing you to easily switch between Fahrenheit and Celsius. Its versatility makes it suitable for oral, rectal, and armpit temperature measurements. The Berrcom Thermometer is a reliable and convenient tool for monitoring fevers and ensuring the well-being of your loved ones.

What We Like
Good price
Easy to use
Accurate readings
Fast delivery
Recommended by users
What We Don't Like
Battery issues reported
Slow temperature reading
#TOP 10

Cuxichuxinxi Fast Reading Thermometer

QT001
White Blue
Cuxichuxinxi Fast Reading Thermometer Cover
Cuxichuxinxi Oral Thermometer with 8s Fast Reading, 3 Colors Backlit, Fever Alert, High Accuracy Medical Basal Thermometer for Adults and Kids, Baby Digital Thermometer for Oral, Rectal, Armpit(Blue)

The Cuxichuxinxi Thermometer delivers quick and accurate temperature readings in just 8 seconds, which is perfect for when you need results fast. Its three-color backlit display allows you to easily identify temperature levels: green for normal, yellow for elevated, and red for high, making it user-friendly even in low light. The BPA-free flexible tip ensures safety and comfort for all ages, whether using it orally, rectally, or under the arm. Additionally, its multifunctional design includes features like memory display and auto shut-off, enhancing convenience for both caregivers and medical professionals.

What We Like
Color-coded temperature display
Quick reading in 8 seconds
Flexible, comfortable tip
Easy battery replacement
Includes protective case
What We Don't Like
Battery life could be better
Not all stores carry battery
Buying Guide Image

Finding the Best Oral Thermometers for You

Oral thermometers are used to measure the body temperature orally. These oral thermometers come in 2 types, digital and mercury. Unlike other thermometers, the oral ones are highly reliable because they are almost as accurate as rectal temperature as well as have a lower upfront cost.

In these current times, having a reliable thermometer at home is extremely important. The accurately measuring oral thermometer will provide us much-needed information which will determine what steps of care to take. But finding such a one is arduous. And to help you guys out, we have made a list of all the essential things you should consider before purchasing an oral thermometer.

Things to Consider before Buying an Oral Thermometer

There are multiple options available in the market when it comes to oral thermometers. Here are some of the specification you should look for in them:

Feature

The digital oral thermometers come with various features. Some have bells and whistles; some have soft curves, some beeps when you hit the right spot or when you have finished taking the temperature. Look for them because they all would provide convenience to you.

Response Time

Some digital sticks take 80 seconds to read the body temperature. However, some only take 10 seconds to readout. It all depends on the model you take.

Added Safety

Some of the digital sticks include many small accessories in their packaging. And this can be dangerous for small children. If you’re buying it for children, then it comes with a protective case to store all the small parts.

Extra

If you’re planning to buy an inexpensive oral thermometer, then consider two factors. One to measure the temperature orally and one to take a rectal temperature. In this way, you wouldn’t have to worry about disposable thermometer covers.

How to Check Temperature with Digital Oral Thermometer

  1. Wash your hands with clean water and soap.
  2. Clean the thermometer with cold water and alcohol
  3. Avoid eating anything 5 minutes before taking your temperature because food and drinks can mess up the reading.
  4. Place the thermometer’s tip under your tongue.
  5. Hold the thermometer for 40-50 seconds
  6. After the time is over, depending on the model, the thermometer will make a beeping noise. Or, if your digital stick doesn’t have this feature, then keep track of the time.
  7. The reading will flash on the digital screen.
  8. Once done, wash the oral thermometer with cold water, clean with alcohol, and rinse properly.

Frequently Asked Questions

Should I buy a Mercury thermometer?

No, it would be best if you did not buy a glass thermometer with mercury because they are hard to read as well as not always provide accurate information. One more thing, these mercury thermometers are very dangerous, in case they break. The Mercury released is a poison that can be dangerous for your family.

What other types of thermometers are not recommended?

  1. Plastic thermometers because they measure only the skin temperature
  2. Pacifier thermometers are not precise also and require to stay in the child's mouth for a long time to record the temperature.
  3. Smartphone app thermometers give inaccurate readings.

Frequently Asked Questions (FAQs)

1. Are mouth thermometers accurate?

Mouth thermometers can provide accurate readings for older children and adults, as long as the mouth is kept closed while the thermometer is in place.

2. Which type of thermometer is most accurate?

Digital thermometers are the most accurate for measuring body temperature. Options include oral, rectal, and forehead thermometers, each with their own design, features, and price range.

3. What temperature is a fever in the mouth?

A fever is indicated by an oral temperature of 100°F (37.8°C) or higher. Other fever thresholds include rectal, forehead, or ear temperatures of 100.4°F (38.0°C) or higher, and under the arm temperature of 99°F (37.2°C) or higher.

4. Are you supposed to add a degree to oral temp?

There is no need to add a degree to the reading of an oral temperature. The thermometer should be placed towards the back of the palate, kept in place for one minute or until a beep sound indicates the reading is complete. The result is accurate without any adjustment.

5. What is the normal temperature under the tongue?

The average normal oral temperature is 98.6°F (37°C).

6. Is 99.5 a low-grade fever?

Normal body temperature ranges from 97.5°F to 99.5°F (36.4°C to 37.4°C). A temperature of 99.5°F (37.4°C) falls within the normal range but can be considered a low-grade fever. Healthcare providers typically define a fever as 100.4°F (38°C) or higher.

7. What is the most accurate way to take temperature in adults?

The most precise body temperature readings for adults come from rectal measurements, followed by oral measurements. Contact thermometers are commonly used today, requiring direct contact with the skin or body to register the temperature.

8. Which thermometer is most accurate oral or forehead?

An oral thermometer measurement is typically 0.5°F (0.3°C) to 1°F (0.6°C) higher than a forehead thermometer measurement. Ear (tympanic) temperatures are generally 0.5°F (0.3°C) to 1°F (0.6°C) higher than oral temperatures, while armpit (axillary) temperatures are usually 0.5°F (0.3°C) to 1°F (0.6°C) lower than oral temperatures.

9. Is 99.7 in the mouth a fever?

Normal body temperature ranges from 97.5°F to 99.5°F (36.4°C to 37.4°C). A temperature of 99.7°F (37.6°C) falls within the normal range but can be considered a low-grade fever. Healthcare providers generally define a fever as 100.4°F (38°C) or higher.

10. Is 99.2 under the tongue a fever?

A fever in a child is indicated by a temperature at or above 100.4°F (38°C) when measured rectally, 99.5°F (37.5°C) when measured orally, and 99°F (37.2°C) when measured under the arm (axillary). A temperature of 99.2°F (37.3°C) measured under the tongue can be considered a low-grade fever.

11. Is 99.1 considered a fever?

While any temperature above your normal range is considered a fever, 99.1°F (37.3°C) falls within the low-grade fever category. Moderate-grade fever ranges from 100.6°F to 102.2°F (38.1°C to 39.0°C), and high-grade fever ranges from 102.4°F to 105.8°F (39.1°C to 41°C).

Editor's Notes

During our oral thermometer research, we found 24 oral thermometer products and shortlisted 10 quality products. We collected and analyzed 84,879 customer reviews through our big data system to write the oral thermometers list. We found that most customers choose oral thermometers with an average price of $9.26.

The oral thermometers are available for purchase. We have researched hundreds of brands and picked the top brands of oral thermometers, including Vicks, TULUR, Rongfeng, Apex, Juvale. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Elisa Drew Avatar

Elisa Drew is a really professional copywriter specializing in baby products with five years of experience working as a pediatrician once. She has published a series of baby books purchased by over thirty thousand people in the United States.

Oral Thermometers Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
#TOP7
#TOP8
#TOP9
#TOP10
Brand Vicks Vicks TULUR Rongfeng Apex Juvale femometer Cuxichuxinxi Berrcom Cuxichuxinxi
Special Feature Fast Reading System High Accuracy Alarm Large Display, Low Battery Indicator, Auto Off, Alarm, 3 Colors Backlit, 8s Fast Reading System, High Accuracy Fast Reading System High Accuracy High Accuracy Backlit, Alarm, Fast Reading System, Auto Off, High Accuracy Waterproof, Alarm, Fast Reading System, Auto Off, High Accuracy Waterproof, Backlit, Fast Reading, Alarm, Fast Reading System
Color Green,Red,Yellow Green,Red,Yellow Light Blue Blue white White Blue Grey White, Blue White Blue
Age Range (Description) Adult Adult Newborn, Infant, Baby, Kid, Adult Infants, Babies, Kids, Adults Adult Adult Adult Babies, Kids, Adults Toddler, Infant, Baby, Kid, Adult All Ages
Outer Material Plastic Plastic Silicone Acrylonitrile Butadiene Styrene, BPA Free Silicone, Stainless Steel Plastic Wax Paper Plastic Plastic Plastic Plastic
Display Type Digital Digital Digital Digital Digital Digital Digital Digital LCD Digital
Product Care Instructions Hand Wash Only Hand Wash Only Wipe Clean Wipe Clean Wipe Clean Wipe Clean Wipe Clean Wipe Clean Store in a clean, dry place, preferably in the provided storage case. Clean With Alcohol Wipe After Each Use
Specification Met Reading Time: 8 Seconds, Temperature Range: +/- 0.2f - - FDA - - FDA FDA FDA FDA
Unit Count 1.0 Count 1.0 Count 1.0 Count - 1 Count 100.0 Count - - 1 Count -
Power Source - Battery Powered Dc Battery Powered Battery Powered - - Battery Powered - Battery Powered
Batteries - - - - 1 CR2 batteries required. (included) - 1 LR41 batteries required. (included) 1 Lithium Ion batteries required. (included) 1 LR41 batteries required. (included) 1 Lithium Ion batteries required. (included)
FTB Score
ftb score rating icon 9.8
ftb score rating icon 9.7
ftb score rating icon 9.5
ftb score rating icon 9.5
ftb score rating icon 9.4
ftb score rating icon 9.2
ftb score rating icon 9.0
ftb score rating icon 9.0
ftb score rating icon 8.9
ftb score rating icon 8.8
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