Etekcity ESN90 Series Smart Nutrition Scale User Manual

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Etekcity ESN90 Series Smart Nutrition Scale User Manual


Package Contents

  1. 1 x Smart Nutrition Scale
  2. 3 x 1.5V AAA Batteries (Pre-Installed)
  3. 1 x Quick Start Guide


  • Weight Capacity 176.4 oz / 11 lb / 5000 g / 5000 mL
  • Units oz / lb:oz / g / mL (water/milk) / fl’oz (water/milk)
  • Scale Auto-Off 30–180 seconds (adjustable in the VeSync app)
  • Dimensions 8.1 x 6.5 x 1.3 in / 207 x 166 x 34 mm
  • Battery 3 x 1.5V AAA Batteries


Measurement Unit Item Weight Increment
< 1000 g 0.1 g
1000–5000 g 1 g
< 35 oz 0.01 oz
35–176 oz 0.05 oz

Note: To access additional smart nutrition scale functions, download the free VeSync app (see page 9)

Safety Information

To avoid damage to this scale, please read and follow all instructions and safety guidelines in this manual.


  • Do not exceed the 11 lb / 5 kg weight capacity, as doing so may damage the scale. An overload indicator will appear on the LCD display if the limit is exceeded.
  • Smart scales are not waterproof. Do not immerse the scale in water or any liquid. If liquid is spilled on the digital display or buttons, immediately wipe the scale clean with a soft cloth to avoid internal damage.
  • Handle with care. This scale is not intended for commercial or heavy-duty use.
  • Keep the scale in a cool, dry place. Avoid exposing to damp environments or extreme temperatures.
  • Household use only


  • Do not mix new and old batteries.
  • If the low battery indicator (“Lo”) appears on the display, replace the batteries.
  • If the scale is not in use for an extended period of time, remove the batteries to conserve battery life and extend the lifetime of the scale.

Function Diagram


  1. A. Weighing Platform
  2. B. Unit Switching Button
  3. C. Digital Display
  4. D. Power/Tare Button
  5. E. Anti-Skid Pads
  6. F. Battery Compartment

Digital Display


  1. A. Bluetooth® Icon
  2. B. Weighing Mode
  3. C. Measurement Unit
  4. D. Tare Mode
  5. E. Negative Weight Value
  6. F. Weight Value


Before first use, remove the plastic strip from the battery compartment. [Figure 1.1]

  • Open the battery compartment on the underside of the scale.
  • If necessary, insert the included AAA batteries, making sure they are under the correct polarity as marked in the battery compartment. [Figure 1.2]
  • Replace the battery cover.
  • Press to turn on the scale.


VeSync App Setup

Note: Due to app updates and improvements, the VeSync app may be slightly different than shown in the manual. In case of any differences, follow the inapp instructions.


  • To download the VeSync app, scan the QR code or search “VeSync” in the Apple App Store® or Google Play Store.


  • This scale uses the VeSync app, not the VeSyncFit app.
  • For Android™ users, choose “Allow” (when prompted) to use VeSync.


  • Open the VeSync app. If you already have an account, tap Log In. To create a new account, tap Sign Up.

Note: You must create your own VeSync account to use third-party services and products. These will not work with a guest account. With a VeSync account, you can also allow your family or friends to use your nutrition scale. Even if you get a new phone, your nutrition records will still be available on your account.

  • Tap + in the VeSync app and select your smart nutrition scale.
  • Follow the in-app instructions to connect your phone to your smart nutrition scale.

Note: You can change the name and icon at any time in the smart nutrition scale settings.

Scale Operation

Note: You can use the VeSync app to operate your scale, and for additional features such as extra settings, food records, tracking nutrition goals, and more.


  • For accurate results, always place the scale on a hard, dry, flat surface, and keep the scale away from dirt, dust, vibration, wind, air currents, and electromagnetic interference.
  • When you turn on the scale, choose units, or use the Tare function, always wait for the scale to read “0” before attempting measurement.


  • Press to turn on the scale. Press UNIT to select your desired measuring unit, which will show at the top of the display.
  • Weight: Choose between ounces (“oz”), both pounds and ounces (“lb:oz”), or grams (“g”).
  • Volume: Scale measures in fluid ounces (“fl’oz”) and milliliters (“ml”). Select water or milk options.
  • Optional: If you’re using a container to hold the items or liquid you’re measuring, first place the empty container on the scale. Press to zero out (tare) the container’s weight (see Tare Function, page 12).
  • Gently place your item on the scale. The display will show the weight or volume.
  • Press and hold for 2 seconds to turn off the scale.


  • To reset the scale, remove all weight from the platform and press .
  • To conserve battery power, the scale will automatically turn off after 2 minutes of inactivity. You can change this in the VeSync app

Tare Function

Whenever you measure liquid or items inside a container, you can use the Tare function to remove the container’s weight from the final measurement.

  • Place an empty container on the scale. The display will show the container’s weight.
  • Press . The display will show “0” again. [Figure 2.1]
  • Place liquid or items in the container. The scale will now measure the liquid or items, without including the weight of the container.
  • When you’re done, reset the scale by removing all weight and pressing .



  • Use a slightly damp cloth to clean the surface of the scale, followed by a dry, soft cloth to wipe away the remaining moisture.
  • You can use a dry, soft cloth to wipe dust off the scale.
  • Do not wash the scale or immerse it in water or any other liquid.


Problem Possible Solution
LCD display is dim.
Scale may be on standby. Place an item on the scale for measurement, or turn off the scale by pressing and holding for 2 seconds.
Replace the batteries.
LCD display shows “Lo”. Battery is low. Replace the batteries.
Scale does not turn on.
Replace the batteries.
Insert batteries under the correct polarity as marked in the battery compartment.
Scale cannot connect to the VeSync app.
Make sure your mobile device is within 30 ft / 10 m of the scale.
Some Bluetooth devices can only exchange data with 1 other Bluetooth device at a time. Make sure the scale is not currently connected to any other phone or app.
Display shows “Err”.
Weight exceeds 176.4 oz / 11 lb / 5000 g / 5000 mL. Promptly remove item from scale to protect its weight sensors. Use a different scale with a higher weight range.

Note: If you still need help, please contact Customer Support (page 18).

FCC Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

  • This device may not cause harmful interference, and
  • This device must accept any interference received, including interference that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

  • Reorient or relocate the receiving antenna.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Increase the separation between the equipment and receiver.
  • Consult the dealer or an experienced radio/TV technician for help.


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