Warnings and Special Attentions Before Using Renpho Scale



• If you have osteoporosis, you should not use this product. If you have a pacemaker, artificial lungs, portable ECG monitor, or any other such medical device, avoid using this product.

• Handle glass products with care.

• This product should not be used to diagnose or treat any medical condition. You should consult a doctor when undertaking any diet or exercise program.

• Do not step on the edge of the scale, otherwise it may tip.

• To avoid slipping, do not step on the scale with wet feet.

• Do not use or store scale in excessively wet environments.

• This product is not intended for use by pregnant women.

• Do not jump on the scale.

• This product is not intended for use by infants, toddlers, and children under 10 years of age.

• Check the device before every use. Do not use the device if damaged. The continuous use of damaged unit may cause injury or improper results.


• Your body measurements may not be accurate after heavy physical activity.

• This smart scale model is not intended for use by infants or toddlers; some body composition measurements are not for children under 18.

• Renpho smart scales should not be used for treating or diagnosing any medical conditions. Always consult your physician or health professional to determine what is suited for you.

Who should pay special attention when using this product?

• Pregnant Women: As the body makes preparations for gestation, it becomes a challenge to gather accurate values for metrics such as fat percentage. During this time, it is suggested that only weight is measured.

• Professional bodybuilders: The target for this product is the general population. Bodybuilders incur special body muscle and fat percentages, so this product may not match measurements as made with specialized instruments or medical equipment. We recommend such users to pay attention to a long-term change in data, rather than measurement values in themselves.

• Children and adolescents under the age of 18: Individuals under 18 take in relatively more nutrition and develop relatively fast. Currently, there is no standard evaluation system for body data for individuals under 18.


Most Frequently Asked Questions

Q: How do I get started with my new Bluetooth scale?

A: STEP 1:

Before first use: Install battery:

Properly install the AAA batteries included in the package.


Use the scale in a firm, flat and stable location, avoid any carpet.


Download and install the free “Renpho Health” App onto your smartphone.
Search "Renpho Health" in App Store or Google Play.


Open the App and follow set-up and pairing instructions:

A.Register your account in the Renpho Health App with email. Or you could login as Guest mode if you don't want to register.

B.Enable Bluetooth on your smart phone.

For iOS users, iOS 13 or above version requires Bluetooth permissions:

1.Go to Settings.

2.Scroll to the Renpho Health App.

3.Enable Bluetooth permission.

For Android users, make sure your location is enabled for Android 6.0 or later.


Pairing the Renpho R-A001 / R-A002 scale with your smartphone.

A. Step on the scale, the device will popped up on the App like this, tap "Connect" to connect:

B. Step onto the scale with bare and dry feet on the scale's conductive area.

C. Keep standing on the scale for 5-10 seconds. Pairing is successful when your metrics appear on the Renpho Health App.

Congratulations! You have successfully completed the first measurement, now you can check the metrics in the app.


Q: Can the scale I used in the Renpho App connect to the Renpho Health App?

A: No. The scale you used with Renpho App before (model starts with ES) cannot be used on Renpho Health App.


Q: How do I delete a measurement?

A: A. Click the right arrow in the upper right corner to enter the weighing page.

B. Click "Trends" in the lower left corner.

C. Tap the upper right corner to view History Data.

D. First, select the date of the data you want to delete.
E. Then, Tap the upper right corner to delete.

F. Tap Delete to delete the data you want to delete.

Q: How do I get an accurate weight?

A: 1. Place the scale on a hard and flat surface. Softer floors such as carpet can cause inaccuracies.

2. Step on the scale with one foot until the LED screen lights up. Then step off and wait for the LED screen to display “CAL”. When "0.00" is displayed, the scale is calibrated. Take off your shoes and socks and make sure both feet are on the electrode plates on either side.

3. During the measurement, try to keep your weight centered directly above and over the scale as much as possible.

4. Keep standing on the scale for about 10 seconds. Even if your weight is displayed, the scale may still be measuring your other body metrics; do NOT step off the scale while the scale is still measuring. After about 10 seconds, the display will go blank and a sound will indicate completion of the measuring process. You should then be able to view your body metrics in the app. (Sound settings can be changed in the Settings menu).

If you think you're getting inaccurate results, it may be caused by the following factors:

- A type of internal error. Try resetting the scale by taking one battery out for 5 seconds and putting it back in. If you are using a rechargeable scale, try pressing the reset button on the back of the scale for 5 seconds.

- An unbalanced floor could also cause inaccurate results. Always try using the scale on a flat surface. Putting it on a soft surface such as carpet can also cause inaccuracies.

- Check the legs/pads of the scale for any obstruction that may cause an imbalance.

Additional tips

1. Avoid moving the scale. Moving the scale frequently increases the risk of inaccuracy.

2. Everyone's weight fluctuates throughout a typical day. Muscle usage and basic consumption of food and water will cause some weight fluctuation. Thus, if you weigh yourself multiple times during the day, you will see some differences. To minimize the fluctuations, weigh yourself the same time each day (such as the morning).

3. Accuracy Range:

110lbs: ± 0.66lb

220lbs: ± 0.88lb

330lbs: ± 1.1lbs

You can test the scale's accuracy by placing a 5 or 10 pound dumbbell on the scale and viewing the measurement. First calibrate the scale: step on the scale with one foot until the LED screen lights up. Then step off and wait for the LED screen to display “CAL”. When "0.00" is displayed, the scale is calibrated and then you can place the dumbbell on the scale.


Q: Why is the data not synchronized to the app after I finish measuring on the scale?

A: First, make sure your Bluetooth is on.
Next, if the Bluetooth is enabled, please go to Device Management and Delete the current device.
Then, step on the scale and pair the device again.

The above steps should be able to solve your problem, if not, please contact us via support@renpho.com


Q: I had an account in Renpho App, will my data transfer to the Renpho Health App?

A: Yes, your previous data from Renpho App will transfer to Renpho Health App automatically if the account is the same. If not, please contact us via support@renpho.com


Privacy And Safety


Q: How do I trust that my data is secured?

A: We know that the information you share with us is sensitive, and it's important to us that we honor your trust. Your scale creates a secure, one-to-one connection to your account on a device of your choice to sync your results, which are then backed up to our servers.

We don't allow any third parties access to your data unless required to by law. Check out our privacy policy(https://renpho.com/pages/renpho-privacy-policy)for more information.


Q: Why do I need to turn on GPS for Android phones?

A: Android phones 6.0+ requires enabling location in order to use Bluetooth. The Android operating system requires this to search and sync with Bluetooth devices.

Ref: https://source.android.com/devices/bluetooth/ble

Note: BLE scanning requires your permission to enable location because BLE scanning identifies objects that could be used for geolocation. Turning off location will disable Bluetooth.


Q: Why does Norton security say that Renpho Health is a risky app.

A: Norton mobile security warns of risky behavior such as auto-updates. And they may ask you to review the Renpho Health app as potentially having auto-updates. However, the Renpho Health app will never attempt to auto-install any additional updates or other apps.

The Renpho Health app is constantly optimized and updated. Some of its functions require access to your phone's other apps. For example, the customer support hotline in the Renpho Health app will request access to make phone calls from your phone. Another example is uploading a profile photo, which requires allowing the Renpho Health app to access your camera and/or photos. Additionally, for Android, location authorization is needed because the Android operating system requires this to search and sync with Bluetooth devices. Rest assured, all of the Renpho Health app's requests for accessing other apps will ask your permission first.


Using The Renpho Mobile App


Q: How can I manually add measurement data?

A: A. Click the right arrow in the upper right corner to enter the weighing page.

B. Tap the "…" in the upper right corner, then tap on Manual input.

C. Use the slide to select your weight. Then tap “+” on “Body Fat” and select your body fat. Then tap “Date” to enter the date.

D. Tap "Recording" to save the data. The data will be stored.

E. The manually entered data will be treated the same as the scale's measurement data. It will be shown and graphed in "Trends".

Q: I've already using with one scale, how do I connect to the 2nd scale?

A: A. Click the right arrow in the upper right corner to enter the weighing page.

B. Tap the "…" in the upper right corner, then tap on Device Management.

C. Make sure your Bluetooth is on, tap the + in the upper right corner.

D. Step on the scale.

E. The new scale will show up on your app's screen. Tap on the + next to the "body fat scale" to pair it.

F. Once paired, you should see your 2nd scale appear on your phone.


Q: How to compare date?

A: A.Click the right arrow in the upper right corner to enter the weighing page.

There are two ways to compare data:
1. First one, you can select the data you'd like to compare:
Scroll down to see the "Comparison", tap it to select:

2. The second is to automatically compare your current measurement data with the last data


Q: Is there a data export function?

A: A. Click "Trends" in the lower left corner.

B. Tap the upper right corner to view History Data.

C. Tap "Export data" at the bottom of the page.

D. Select the Start date and the End date you want to export, then click Confirm.


Q: How to turn on/off Athlete Mode?

A: A. Click "me" in the lower left corner, then Tap/select your name/ profile picture to enter your Profile page.

B. You will then see the same profile page from when you were setting up your account. Tap/select the "Athlete mode".

C. Turn on/off the Athlete mode.

D. Back to the profile page and tap/select "Save" to confirm the change.


Q: How do I switch between units (i.e. lb and kg) on the scale display?

A: A. Click "me" in the lower left corner, then Tap "Setting".

B. Tap "Measurement Unit Setting"

C. Select the unit you'd want.


Q: Can I use this smart scale without connecting to an app?

A: Yes, the scale can be used in 2 ways:

1. You can have the scale synced with your phone. The measurements are uploaded to the Renpho mobile app immediately.
2. You can use the scale without your phone. The scale can store 20 measurements;
To sync the data which you did not use with the App:
A. Please open the Renpho Health App, make sure the Bluetooth is turned on, step onto the scale.
B. After a new measurement syncing to the App successfully, your offline data will be popped up, and you can assign the data to the correct user.

- Please wait for the scale to auto-shutoff (about 10 seconds) to store the measurements if you are using the storage function.

- If you want to replace the battery or restart the scale, please sync the stored data to the app beforehand otherwise the data will be lost.

- The scale can store up to 20 measurements.

- If multiple people use the scale without it being connected to a phone, it is recommended that all users be under the same account. If all users created their own individual account and everyone used the same scale without connecting it to their phones, the scale would store all the measurements offline as expected. But once the next account holder syncs with the scale, that account will have all the measurements stored in the scale assigned to them, regardless of who the measurement data belongs to. That’s why it’s better for multiple users to be under the same account if they plan to use the scale offline. In this case, the measurement data may be automatically assigned. Or if the data is not recognized, a window will pop up asking you which user to assign the measurement data to.


Q: How do I modify my gender, age, or height?

A: A. Click "me" in the lower left corner, then Tap/select your name/ profile picture to enter your Profile page.

B. You will then see the same profile page from when you were setting up your account. Tap/select the info you'd like to modify.



Q: How to delete a scale user under my account?

A: A. Click "me" in the lower left corner, then Tap the Measurement User to enter your user page.

B. You will then see the Mesurement Users list, Swipe left to Delete.


Q: Does the scale support multiple users?

A: Yes, R-A001 and R-A002 scale using with Renpho Health App can support 20 users at most.


Apple Watch & 3rd Party Apps


Q: How can I connect the app to Google Fit?

A: A. Click "me" in the lower left corner, then Tap "Third party access".

B. Select Allow to access.

C. Select Google Fit and login to your Google Fit account and allow Renpho to access your Google Fit account.

D. After you use the scale, the data will be uploaded to Google Fit. You can login to your app to view your data.

If you logout of the Renpho Health app, the data will not sync with Google Fit. Ensure you are logged in to both the - Renpho Health and Google Fit apps.

- Ensure you are the main user. Sync only one Renpho app to one Google Fit account.


Q: How do I connect to Apple Health?

A: A. Click "me" in the lower left corner, then Tap "Third party access".

B. Tap "Apple Health", then follow the instruction.


Q: How can I connect the app to Samsung Health?

A: The connecting to Fitbit App and Samsung Health function is under construction right now, please stay tuned.


Q: How do I connect to the Fitbit App?

A: The connecting to Fitbit App and Samsung Health function is under construction right now, please stay tuned.




Q: What should I do if the scale displays something unusual(Err/Lo)?

A: Lo indicates low power.

Replace/recharge the battery within 3 days when the scale displays "Lo".

Err indicates the scale sensor may have been overloaded or an internal programming error.

The scale can support a maximum weight of 400 pounds. If Err is not caused by excessive weight, please restart the scale by taking out the batteries for 5 seconds (and putting them back in) or pressing the reset button for 5 seconds.


Q: Why does the scale not detect body fat and other data?

A: 1. Make sure your feet are bare.

2. Stand firmly on the scale with feet apart, facing the LED digital display.

3. Wait about 15s for the weighing process to finish.

4. Try applying moisturizer to your feet and measure again.

5. Ask another person to step on the scale and see if the body fat data works for them.


Q: Why has my scale stopped working?

A: Please replace with new batteries.

1. Please ensure the positioning of the batteries is correct.

2. If there is any rust on the surface of the battery compartment, please clean it.

3. Please make sure all points of contact are tight.

Tips for extending service life:

1. When not in use for a long period of time, please remove the batteries and place the device in a dry room and protect it against extreme moisture, heat, lint, dust, and direct sunlight. Never place any heavy objects on the device.

2. Replace the battery within 3 days when the scale displays "Lo".

3. Excessive heat may damage the battery. Avoid using and storing the scale in high-temperature places.

4. Do not use the scale in a humid environment.

5. Do not mix old and new batteries.


Q: Why does the battery drain so quickly?

A: Bluetooth scales transmit a signal to sync with your phone; thus, most Bluetooth scales will consume more battery power than basic scales.

The complimentary batteries are for trial purposes. Please replace the battery within 3 days when the scale displays "Lo".


Q: My scale displays a non-zero number when there is nothing on it. I can’t make it display 0.00. How can I reset?

A: 1. Remove one of the batteries out of the scale.

2. Wait for 5 seconds and put the battery back in.

3. This resets the scale. Try stepping onto the scale again to check whether it can display 0.00 when there is no weight on it.


Q: If I forgot my password, how do I get my password back?

A: 1. Open the Renpho Health app.
2. Under the login page, tap "Forget password?".

3. Type in your email and receive the verification code.

4. Set your new password, and tap Confirm.

- The verification code expires in 30 minutes.
- Ensure your email address is correct.
- If the email does not arrive in your inbox in a few minutes, check your spam or junk folder or try resending again after 2-3 minutes.
- If it still does not work, contact the support team at support@Renpho.com. 


Understanding Measurement Results


Q: Why are my body composition numbers different from the ones I see at my gym, doctor, etc.?

A: Body composition analysis is an inexact science, regardless of the manufacturer or method of measurement. Because your scale combines the measurements it takes with variables stored in your user profile according to our algorithm, the numbers you see may vary from those you see using other measurement methods – which is completely normal. When you're measuring body composition, it's more important to pay attention to overall trends than the absolute value of a single measurement. (Tracking in the Renpho Health app helps with that.)


Q: Who should use Athlete Mode?

A: For the purposes of Athlete Mode for the Renpho Bluetooth Smart Scales, an athlete is defined as someone who consistently works out for approximately 3 times a week for 2 hours. This may also apply to people, who previously worked out frequently for a long period of time but less now. This mode is also suitable for people involved in endurance sports, such as running and cycling.

If you are still wondering whether or not you should use Athlete Mode, don't worry too much about it. There is not an exact moment where you are - or are not - an athlete. Some people will get a slight underestimation on athlete mode and a slight overestimation on standard adult mode, falling into a gray area. In which case, the most important factor to look for in the Renpho Bluetooth Smart Scales is when you are given consistent readings over a period of time. Sticking with the same assessment system will likely yield a better overall picture of a person's health status. Relative changes in value are more meaningful than the absolute value of a single measurement.


Q: Why is Athlete Mode necessary in a Body Fat Scale?

A: It was found that body fat estimation using bioelectrical impedance analysis (BIA) can overestimate the body fat percentage of adult athletes. The physiological variations of athletes are said to account for the difference in body composition compared to the average person with a moderately active lifestyle. Such variations include higher bone density and hydration levels in athletes. Therefore, to get the most accurate measurement results, adult athletes should turn on Athlete Mode in the Renpho app.


Q: What is the weight accuracy of my scale?

A: The Renpho scale has an incremental measurement accuracy range that is based on how much you weigh:

50kgs: ± 0.3kg
100kgs ± 0.4kg
150kgs ± 0.5kg
110lbs: ± 0.66lb
220lbs ± 0.88lb
330lbs ± 1.1lbs

For example, if you weigh 220lbs, the scale is accurate to within 0.88lbs.


Q: How does the scale measure my body fat and other body composition metrics?

A: Like most household body fat scales, the Renpho Smart Body Composition Scales use the Bio-electrical Impedance Analysis or Bioimpedance Analysis (BIA) Method to assess body compositions. Measuring body fat in relation to lean body mass is an integral part of a health and nutrition evaluations.

This non-invasive test simply involves your feet touching four electrodes on the scale. A low level, imperceptible electrical current is sent through the body. The flow of the current is affected by the amount of water in the body. The device measures how this signal is impeded through different types of tissue. Tissues that contain large amounts of fluid and electrolytes, such as blood, have high conductivity, but fat and bone slow the signal down. As BIA determines the resistance to flow of the current as it passes through the body, it provides estimates of body water from which body fat is calculated using selected algorithms.

This is why the measurements need to be done barefoot, with both the user's feet on the scale touching the metal pads.


Q: How do I know if my weight is healthy?

A: You can check the Measurement Report:
Tap "See details" next to the Date to view the Measurement Report

FYI, the body composition reporting standards are referred to the American Council on Exercise.