Best Oral Thermometers of 2026

Elisa Drew Avatar
Elisa Drew
Last Updated: Jan 16, 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

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

Oral Thermometer for Adults with Fast Reading Cover #TOP 1
Oral Thermometer for Adults with Fast Reading
ftb score rating icon 9.8
Vicks SpeedRead Digital Thermometer Cover #TOP 2
Vicks SpeedRead Digital Thermometer
ftb score rating icon 9.7
Juvale Disposable Thermometer Probe Covers Cover #TOP 3
Juvale Disposable Thermometer Probe Covers
ftb score rating icon 9.5

Top 10 Oral Thermometers

Oral Thermometer for Adults with Fast Reading

GF-MT501
Light blue
Oral Thermometer for Adults with Fast Reading Cover
Boncare 10 Seconds Oral Thermometer for Adults and Kids - Accurate & Safe Rectal Thermometer for Baby with Fever Alarm, Digital Thermometer (Light Blue)

This oral thermometer is a reliable medical grade thermometer for adults that can be used orally, rectally, or underarm. It provides accurate and fast temperature reading in about 10 seconds. The thermometer features an LCD screen display with a clear reading, beeper alarm, memory display, and auto shut off. The waterproof tip allows easy and hygienic cleaning. It is lightweight and portable, comes with a free storage case, and can be used anywhere and anytime. Please read the product manual before using for accurate readings.

What We Like
Fast 10-second readings
Accurate and reliable results
Easy-to-read display
Flexible, comfortable tip
Affordable price point
What We Don't Like
Protective case could be better
Beep is a bit soft
#TOP 2

Vicks SpeedRead Digital Thermometer

V912USV5
white
1 Count (Pack of 1)
Vicks SpeedRead Digital Thermometer Cover
Vicks SpeedRead Digital Thermometer for Baby, Kids & Adults, Color-Coded Readings, Oral, Baby Rectal Thermometer or Under The Arm, Water Resistant

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
Fast temperature readings
Consistent accuracy
Easy-to-read display
Color-coded indicator lights
Simple, user-friendly design
What We Don't Like
Tight battery compartment
Storage could be better
#TOP 3

Juvale Disposable Thermometer Probe Covers

4332450029
White
Juvale Disposable Thermometer Probe Covers Cover
Juvale Thermometer Covers - 100 Count, White - Disposable Probe Covers for Digital Thermometers & Oral, Rectal, Armpit Use

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
Fits most thermometers
Sanitary and hygienic
Durable quality
Good value pack
What We Don't Like
Short cover length
Occasionally difficult to apply
#TOP 4

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 Adults & Children, 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
Quick and accurate readings
Easy-to-read illuminated display
Flexible and comfortable design
Simple to use
Suitable for impaired eyesight
What We Don't Like
Probe cover not included
Fahrenheit only option
#TOP 5

Braun Digital Thermometer 3-in-1

PRT2100US
White
Small
Braun Digital Thermometer 3-in-1 Cover
Braun Digital Thermometer, Clinically Accurate, Color Coded Fever Guidance for Baby, Toddlers, Kids & Adults, Oral, Rectal or Underarm use, No 1 Brand Recommended by Pediatricians

The Braun 3-in-1 Thermometer is designed to give you fast and reliable temperature readings, making it easier to monitor your family's health at home. Recommended by pediatricians, it ensures accuracy so you can trust the results. Its versatile design allows you to take temperatures orally, rectally, or under the arm, making it suitable for everyone from babies to adults. Plus, it delivers results in as little as 8 seconds, saving you time and hassle. The color-coded display helps you quickly understand the reading, with green for normal, yellow for mild fever, and red for high fever, so you can take action when needed.

What We Like
Accurate temperature readings
Fast measurement
Easy-to-read display
Simple operation
Comfortable soft tip
#TOP 6

MABIS Disposable Probe Covers

15-618-000
MABIS Disposable Probe Covers Cover
MABIS Disposable Probe Covers for Digital Thermometers, Box of 100, FSA Eligible, Can be Used Orally, Rectally or Under the Arm

MABIS Probe Covers are a convenient and hygienic solution for your digital thermometer. These probe covers feature a safe, closed-system design that ensures accurate temperature readings and prevents cross-contamination. Sized to fit most digital thermometers, they can be used orally, rectally, or under the arm. Whether you're taking your child's temperature or monitoring your own, these probe covers provide a comfortable and sanitary experience. Made with high-quality materials, MABIS Probe Covers are a reliable choice for your temperature monitoring needs. With their versatility and ease of use, these probe covers are a must-have accessory for any household.

What We Like
Hygienic
Accurate
Versatile
#TOP 7

Healthwise 30-Second Digital Thermometer

59-309
Blue
Healthwise 30-Second Digital Thermometer Cover
Healthwise Digital Thermometer | 30-Second Readout | Feverline Indicator | Clinical Rigid Tip | Hygienic Water-Resistant Easy Cleaning | Storage Case + Probe Covers Included

The Healthwise Fast Digital Thermometer offers quick and reliable temperature readings in about ten seconds, making it ideal for busy families who need fast results. Its large digital screen ensures you can easily see the measurement, whether taken orally, under the arm, or rectally. The thermometer also features a color-coded feverline indicator, which instantly shows if a fever is present using green, yellow, or red bars, so you can quickly assess the situation. Additionally, it alerts you with a sound when the reading is complete, so you don’t have to guess or keep checking. This makes monitoring your or your loved ones’ health convenient and stress-free.

What We Like
Accurate readings
Easy to use
Clear display
Affordable price
What We Don't Like
Possible battery issues
Tiny printed instructions
#TOP 8

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, Acctrate & Safe-Baby Thermometer for Oral, Rectal or Under Arm Use, Large LCD Display with Fever Alarm

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 reading
Easy-to-read display
Soft, flexible tip
Compact and portable
Accurate results
What We Don't Like
Occasional malfunction
Rare display issues
#TOP 9

JOINPAYA Glass Oral and Armpit Thermometer 2Pc

80c7a076-6b21-4b27-b927-a12c8dfd67f9
Blue
JOINPAYA Glass Oral and Armpit Thermometer 2Pc Cover
JOINPAYA 2Pc Glass Oral Temperature Adult: Free Clinic Armpit Fast Reading Fever Indicator

The JOINPAYA Glass Thermometer is designed for easy and accurate temperature measurement. It uses Celsius, but if you're unfamiliar with the scale, helpful pictures show the equivalent Fahrenheit values, making it simple to understand your reading. Before taking a temperature, you shake the thermometer until the indicator drops below 35°C, ensuring a fresh start for each use. To get a reliable reading, you should keep the thermometer in place for at least 15 minutes. The best spot to measure your temperature is under the armpit, but it also works for oral or anal use, giving you flexibility depending on your preference or situation.

What We Like
High measurement accuracy
Durable glass construction
Easy to use
Value for money
Convenient 2-pack
What We Don't Like
Manual reading takes practice
Occasional shipping damage
#TOP 10

Vicks RapidRead Digital Thermometer

VDT972US
Green,Red,Yellow
Vicks RapidRead Digital Thermometer Cover
Vicks RapidRead Digital Thermometer, Temperature Readings in 2 Seconds, Use as Oral Thermometer, Baby Rectal Thermometer or Under The Arm, Water Resistant

The Vicks RapidRead Thermometer is designed for quick and accurate temperature readings in just 2 seconds, helping you easily identify a fever. Its flexible tip allows for comfortable use in the mouth, rectum, or under the arm, catering to both children and adults. With a color-coded display, you can quickly interpret the results: green means no fever, yellow indicates a slight elevation, and red signifies a high fever. This thermometer is also water resistant, making it a practical choice for busy parents. Plus, it recalls your last reading, ensuring you stay informed about your health.

What We Like
Fast temperature readings
Easy to use
Multiple measurement sites
Bright, readable display
Accurate results
What We Don't Like
Battery issues on arrival
Occasional inconsistent readings
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 179,359 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 $6.66.

The oral thermometers are available for purchase. We have researched hundreds of brands and picked the top brands of oral thermometers, including Boncare, Vicks, Juvale, Braun, MABIS. The seller of top 1 product has received honest feedback from 736 consumers with an average rating of 4.9.

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 Boncare Vicks Juvale Vicks Braun MABIS HealthWise TULUR JOINPAYA Vicks
Special Feature Alarm, Auto Off, Fast Reading System, High Accuracy, Low Battery Indicator adult thermometer for fever, baby thermometer for infants, baby thermometer newborn, digital thermometer for adults, digital thermometer for baby, fever thermometer for adults, infant thermometer, oral thermometer for adults, rectal thermometer for babies High Accuracy baby thermometer for infants, kids thermometer, adult thermometer for fever, instant thermometer digital, thermometer for kids, fever thermometer for adults, infant thermometer, child thermometer, childrens thermometer, digital thermometer for kids, temperature thermometer, newborn thermometer, infant rectal thermometer, toddler thermometer Backlit, High Accuracy, color-coded thermometer, digital thermometer Waterproof Auto Off Alarm Fahrenheit & Celsius Fast Reading System
Color Light blue white White Green,Red,Yellow White VO Blue Light Blue Blue Green,Red,Yellow
Outer Material Stainless Steel Plastic Wax Paper Plastic Plastic Plastic Plastic Plastic Glass Plastic
Display Type Digital Digital Digital Digital Digital Digital Digital Digital Analog Digital
Unit Count 1.0 Count 1.0 Count 100.0 Count 1.0 Count 1.0 Count 100.0 Count 1.0 Count 1.0 Count 2.0 Count 1.0 Count
Age Range (Description) Newborn, infant, toddler, kid, youth, adult Adult Adult Adult For newborns, children and adults Adult All Adult, Kids & Baby - All Ages
Product Care Instructions Clean with wet wipe and alcohol after each use Hand Wash Only Wipe Clean Hand Wash Only Do Not Soak, Wipe Clean Wipe Clean - Wipe Clean Wipe Clean Wipe Clean
Specification Met ISO 13485 Reading Time: 8 Seconds, Temperature Range: +/- 0.2f - - FDA Fsa Eligible ISO 13485, ISO 9001 CE, FCC NSF -
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 9.5
ftb score rating icon 9.4
ftb score rating icon 9.2
ftb score rating icon 9.2
ftb score rating icon 9.2
ftb score rating icon 9.1
Where to Buy