Smart Body Composition Scale
User Manual
Thank you for purchasing the
Smart Fitness Scale by Etekcity.
Questions or Concerns?
Mon–Fri, 9:00 am–5:00 pm PST/PDT
support@etekcity.com • 1-855-686-3835
If you have any questions or concerns, please reach out to our
helpful Customer Support Team at support@etekcity.com.
We hope you enjoy your new smart scale!
3
Table of Contents Specifications
Name
Smart Fitness Scale
Model
EFS-C671-WUST
Weight
Capacity
400 lb / 180 kg
Weight Units
lb / kg
Platform
Tempered Glass
Battery
300mAh Li-ion Battery
Input
5.0V 500mA (USB
Type-C Charging)
Dimensions
11.8 x 11.8 x 0.9 in /
30 x 30 x 2.4 cm
Operating
System
iOS
®
12.0+ or
Android™ 6.0+
Specifications
Safety Information
Function Diagram
Display Diagram
Display Messages
VeSync App Setup
Creating a User
Using the Smart Scale
Maintenance
Troubleshooting
Etekcity Limited Product Warranty
Customer Support
3
4
5
6
6
7
8
9
10
11
15
17
Please read and follow all instructions and safety guidelines in this manual.
WARNING: This scale uses a harmless
electrical current to measure body
fat. Consult a healthcare professional
before using the smart scale if you use
electronic medical equipment such as a
pacemaker.
READ AND SAVE THESE
INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Safety Information
MEDICAL
GENERAL USE
• Check the scale before using. Do not
use the scale if it is damaged in any
way.
• Do not strike or bang on the scale.
• Do not use the scale if there is a crack
on the glass. While tempered glass
is stronger and fractures more safely
than ordinary glass, it may shatter
unexpectedly after developing a slight
crack. If you see a crack, contact
Customer Support (see page 17).
• The glass platform is slippery when
wet. Always make sure the platform
and your feet are dry before stepping
on for measurement.
• This scale should not be used to
diagnose or treat any medical
condition.
• Scale data should not be used as a
substitute for medical advice from a
healthcare professional.
• Place the scale on a hard, flat surface
to avoid tipping.
• To weigh safely and accurately, stand
with your feet shoulder-width apart
while on the scale.
• Do not stand on the edge of the scale
or jump on the scale.
• Avoid standing on the scale for a long
period of time, or when not measuring
yourself.
• Do not overload the scale. Maximum
weight capacity is 400 lb / 180 kg.
• Keep the scale in a cool area with low
humidity.
• Keep the scale away from heat
sources, such as ovens or heaters.
Avoid temperature fluctuations.
• Store the scale in a horizontal position,
not a vertical position.
• Do not use while charging. Remove
the charging cable before using.
• This scale is not to be used by
persons (including children) with
reduced physical, sensory or mental
capabilities, or lack of experience
and knowledge, unless they have
been given supervision or instruction
concerning use of the appliance by a
person responsible for their safety.
• Handle with care.
• Not for commercial use.
• Household use only.
5
Function Diagram
A. Display
B. Weighing Platform
C. Conductive Areas
D. Reset Button
E. Anti-Skid Pads
F. USB-C Charging Port
G. Unit Button
A
B
D
F
G
E
C
Display Diagram
Display Messages
A. Bluetooth
®
Icon
B. Battery Icon
C. Weight Units
D. Weight Measurement
A
B
D
C
Flashes when the scale needs to be charged.
Flashes when Bluetooth is disconnected.
Stays solid when connected.
Weight exceeds 400 lb / 180 kg. Use a scale with a
higher weight capacity.
7
1. To download the VeSync app, scan
the QR code or search “VeSync” in
the Apple App Store
®
or Google Play
Store.
VeSync App Setup
Note:
• Please make sure your firmware and
software are up to date.
• The VeSync app is continually being
improved and may change over time.
If there are any dierences, follow the
in-app instructions.
Note:
• You can tap on the product categories
to jump to dierent sections of the
device list.
• Make sure to choose the right device
model (you can find it on the back of
the scale) or it will lead to a connection
failure.
Note:
• You can change the scale’s in-app
name and icon at any time in the smart
fitness scale settings.
• When the scale display turns o, the
scale’s Bluetooth will disconnect and
go into auto-o mode. However, when
the scale display lights up and the app
is opened to the device page, the scale
will reconnect to Bluetooth.
2. Open the VeSync app. Log In or
Sign Up.
3. Follow the in-app instructions to set
up your smart scale.
4. Tap + in the VeSync app.
5. Step on the scale and select your
smart scale from the device list.
6. Follow the in-app instructions to
complete setup.
Creating a User
If you are a new user, you will need to
enter physical information before weighing
yourself for the first time so the scale can
calculate your body metrics. Follow the
in-app instructions to create a user profile.
Note:
• Entering inaccurate information will
make the scale’s measurements less
accurate.
• If you don’t identify with the available
gender options, or are unsure, pick the
option that you think best physically
matches you. This choice is used for
physical measurements, such as body
fat percentages.
• Children under 3 years of age cannot
measure body metrics other than
weight.
• Minors will need a guardian’s consent
to create a VeSync account.
9
Using the Smart Scale
Note: If your smart scale is connected to
the VeSync app, your results (such as BMI,
Body Fat, etc.) will show in the app.
SWITCHING UNITS
Note:
• Turning on Zero-Current Mode in the
VeSync app will turn o the scale’s electrical
current and will only provide measurements
for weight and BMI. This mode can be
helpful for users who are pregnant or who
have implanted medical devices, such as
pacemakers.
• To measure your baby or pet, turn on Baby
Mode and follow the in-app instructions for
weighing. Baby Mode will not measure other
body metrics and will only measure weight
and BMI.
Note:
• Placing on soft surfaces such as
shaggy carpet may cause inaccurate
measurements or tipping.
• The scale can be used on low-pile
carpet with a fiber length 0.4 inches /
10 mm or less.
1. Place the scale on a hard, flat
surface. [Figure 1.1]
1. Flip over the scale and press UNIT.
[Figure 2.1]
2. The default unit is in pounds (lb). To
switch back to kilograms (kg), press
UNIT again.
3. Optionally, open the VeSync app and
select the scale’s settings icon
.
Select the measurement unit you want
to use.
4. After changing units, the scale will
show the new unit of measurement.
2. Step on the scale, then step o. Wait
for the screen to display “
” before
using.
3. Stand on the scale until the display
flashes several times, then shows your
final measurement. [Figure 1.2]
Figure 1.1
Figure 2.1
Figure 1.2
FPO
Maintenance
CLEARING THE SMART SCALE
CLEANING THE SMART SCALE
CHARGING THE SCALE
If the scale has been moved or flipped
upside down, it must be cleared to
ensure accurate results.
will flash on the display when the scale
needs to be charged.
1. Place the scale on a hard, flat surface.
2. Step on the scale until digits appear on
the display, then step o.
[Figure 3.1]
1. Insert the USB-C charging cable into
the charging port.
2. Plug the USB charging cable into
a DC 5V adapter and plug into an
outlet. You can also plug the cable
into a powered USB outlet.
3. The scale will show “
” when
cleared. [Figure 3.2]
Figure 3.1
Figure 3.2
FPO
• Use a slightly damp cloth to clean
the surface of the scale, followed by
a soft, dry cloth to wipe away any
remaining moisture.
• Do not use chemical or abrasive
cleaning agents to clean the scale.
Note: Charging the smart scale with the
original cable will provide the best results.
FPO
11
Note: If your Android phone system is lower than Android™ 12.0+, please authorize the location (GPS) permission of the
VeSync app in your phone settings.
Troubleshooting
The scale doesn’t turn on.
• The scale may need to be charged. Plug in the scale and charge for 3 hours.
Information flashes on the display and then disappears.
• The scale’s battery may be low and needs to be charged. Plug in the scale and charge for 3 hours.
• Make sure your scale and phone are within 30 ft / 10 m of each other.
• Make sure the scale is not currently connected to any other phone or app.
• The scale may need to be restarted. Use a safety pin or paper clip to press the Reset button near
the charging port to reset the scale.
• The scale should only be connected to your phone via the VeSync app. Do not connect the scale to
your phone’s Bluetooth settings.
• Make sure any VPN apps are turned o.
• Tap “Disconnected” on the top of the weigh-in screen to detect Bluetooth
®
errors.
The scale readings seem unstable or inaccurate.
• Make sure the scale is on a hard, flat surface.
• Reset the scale to zero (see page 10).
My scale will only measure my weight, not my other metrics.
• If you’re wearing shoes or socks, the scale cannot measure biometrics such as body fat. Step on the
scale with bare feet.
• Make sure the scale is connected to the VeSync app (see VeSync App Setup, page 7).
• Make sure you entered your age, weight, and height in your account so the scale can make
calculations for your other biometrics.
• Wait about 15 seconds for the weighing process to finish.
• If your feet are too dry or too wet, the biometrics may not be detected. Skin can become very dry
during winter, apply moisturizer to your feet when the scale cannot measure other biometrics.
• Check if Zero-Current Mode is on. If it is, the scale will only provide measurements for weight and BMI,
not other biometrics.
The smart scale can’t connect to the VeSync app.
Please confirm the following before pairing:
• Make sure your phone’s operating system is running on iOS
®
15.0+ or Android 8.0+.
• Close and relaunch the VeSync app. Make sure you’re using the latest version.
• Make sure to allow VeSync’s Bluetooth
®
permission and turn on your phone’s Bluetooth
®
. For Android
users, please allow the app to access nearby devices in your phone’s settings.
The smart scale doesn’t connect to the VeSync app.
• The scale’s battery may be low and needs to be charged. Plug in the scale and charge for 3 hours.
If your problem is not listed, please contact Customer Support (see page 17).
Attributions
Fitbit is a registered trademark(s) of Fitbit, Inc. and/or its aliates in the United States and
other countries.
Apple App Store and Apple Health are trademarks of Apple Inc.
Google, Android, and Google Play are trademarks of Google LLC.
Wi-Fi
®
is a registered trademark of Wi-Fi Alliance
®
.
Amazon, Alexa and all related logos are trademarks of Amazon.com, Inc. or its aliates.
iOS is a registered trademark of Cisco Systems, Inc. and/or its aliates in the United States
and certain other countries.
The Bluetooth
®
word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.
and any use of such marks by Arovast Corporation is under license. Other trademarks and
trade names are those of their respective owners.
13
Federal Communication Commission Interference
Statement – Part 15
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
NOTE: 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 o and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
FCC Caution: Any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate this equipment.
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause
undesired operation.
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement
FCC SDOC SUPPLIER’S DECLARATION OF
CONFORMITY
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. End users must follow the specific operating instructions for satisfying RF
exposure compliance. To maintain compliance with FCC RF exposure compliance require-
ments, please follow operation instructions as documented in this manual. This transmitter
must not be co-located or operating in conjunction with any other antenna or transmitter.
The availability of some specific channels and/or operational frequency bands are country
dependent and are firmware programmed at the factory to match the intended destina-
tion. The firmware setting is not accessible by the end user.
Etekcity Corporation hereby declares that this equipment is in compliance with the FCC
Part 15 Subpart B. The declaration of conformity may be consulted in the support section of
our website, accessible from www.etekcity.com
15
Etekcity Limited Product Warranty
Etekcity Limited Product Warranty
Register your products at https://warranty.etekcity.
com/warranty to stay up to date with important
product information such as product updates,
limited warranties, usage and maintenance
recommendations, and notifications concerning
safety warnings or product recalls. Registration is not
required to claim your limited warranty.
Two (2) Year Limited Consumer Product Warranty
Etekcity Corporation (“Etekcity”) warrants that the
product shall be free from defects in material and
workmanship for a period of 2 years from the date of
original purchase (“Limited Warranty Period”), provided
the product was used in accordance with its use and
care instructions (e.g. in the intended environment and
under normal circumstances).
Your Limited Warranty Benefits
During the Limited Warranty Period and subject to
this limited Warranty Policy, Etekcity will, in its sole
and exclusive discretion, either (i) refund the purchase
price if the purchase was made directly from the
online Etekcity store, (ii) repair any defects in material
or workmanship, (iii) replace the product with another
product of equal or greater value, or (iv) provide store
credit in the amount of the purchase price.
Who Is Covered?
This limited warranty extends only to the original
consumer purchaser of the product and is not
transferable to any subsequent owner of the product,
regardless of whether the product transferred
ownership during the specified term of the limited
warranty. The original consumer purchaser must
provide verification of the defect or malfunction and
proof of the date of purchase to claim the Limited
Warranty Benefits.
Be Aware of Unauthorized Dealers or Sellers
This limited warranty does not extend to products
purchased from unauthorized dealers or sellers.
Etekcity’s limited warranty only extends to products
purchased from authorized dealers or sellers that
are subject to Etekcity’s quality controls and have
agreed to follow its quality controls. Please be aware,
products purchased from an unauthorized website or
dealer may be counterfeit, used, defective, or may not
Product Name Smart Fitness Scale
Model EFS-C671-WUST
For your own reference, we strongly recommend
that you record your order ID and date of
purchase.
Order ID
Date of Purchase
be designed for use in your country. You can protect
yourself and your products by making sure you only
purchase from Etekcity or its authorized dealers.
If you have any questions about a specific seller, or if
you think you may have purchased your product from
an unauthorized seller, please contact our Customer
Support via support@etekcity.com.
What’s Not Covered?
• Normal wear and tear, including parts that might
wear out over time (e.g. batteries, filters, cleaning
brush, essential oil pads, etc.).
• If the proof-of-purchase has been altered in any
way or is made illegible.
• If the model number, serial number or production
date code on the product has been altered,
removed or made illegible.
• If the product has been modified from its original
condition.
• If the product has not been used in accordance
with directions and instructions in the user manual.
• Damages caused by connecting peripherals,
additional equipment or accessories other than
those recommended in the user manual.
• Damages or defects caused by accident, abuse,
misuse, or improper or inadequate maintenance.
• Damages or defects caused by service or repair of
the product performed by an unauthorized service
provider or by anyone other than Etekcity.
• Damages or defects occurring during commercial
use, rental use, or any use for which the product is
not intended.
• If the unit has been damaged, including but not
limited to damage by animals, lightning, abnormal
voltage, fire, natural disaster, transportation,
dishwasher, or water (unless the user manual
expressly states that the product is dishwasher
safe).
• Incidental and consequential damages.
• Damages or defects exceeding the cost of the
product.
Claiming Your Limited Warranty Service in 5 Simple
Steps:
1. Make sure your product is within the specified
limited warranty period.
2. Make sure you have a copy of the invoice and
order ID or proof-of-purchase.
3. Make sure you have your product. DO NOT
dispose of your product before contacting us.
4. Contact our Customer Support team via
support@etekcity.com.
5. Once our Customer Support team has approved
your request, please return the product with a
copy of the invoice and order ID.
Sole and Exclusive Remedy
THE FOREGOING LIMITED WARRANTY CONSTITUTES
ETEKCITY CORPORATION’S EXCLUSIVE LIABILITY,
AND YOUR SOLE AND EXCLUSIVE REMEDY, FOR
ANY BREACH OF ANY WARRANTY OR OTHER
NONCONFORMITY OF THE PRODUCT COVERED BY
THIS LIMITED PRODUCT WARRANTY STATEMENT. THIS
LIMITED WARRANTY IS EXCLUSIVE, AND IN LIEU OF
ALL OTHER WARRANTIES. NO EMPLOYEE OF ETEKCITY
CORPORATION OR ANY OTHER PARTY IS AUTHORIZED
TO MAKE ANY WARRANTY IN ADDITION TO THE
LIMITED WARRANTY IN THIS LIMITED PRODUCT
WARRANTY STATEMENT.
Disclaimer of Limited Warranties
TO THE FULLEST EXTENT PROVIDED BY APPLICABLE
LAW, EXCEPT AS WARRANTED IN THIS LIMITED
PRODUCT WARRANTY POLICY, ETEKCITY
CORPORATION PROVIDES THE PRODUCTS YOU
PURCHASE FROM ETEKCITY CORPORATION “AS IS”
AND ETEKCITY CORPORATION HEREBY DISCLAIMS
ALL WARRANTIES OF ANY KIND, WHETHER EXPRESS
OR IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING
BUT NOT LIMITED TO ANY WARRANTIES OF
MERCHANTABILITY, NON-INFRINGEMENT, AND FITNESS
FOR PARTICULAR PURPOSE.
Limitations of Liability
TO THE FULLEST EXTENT PROVIDED BY APPLICABLE
LAW, IN NO EVENT WILL ETEKCITY CORPORATION,
ITS AFFILIATES, OR THEIR LICENSORS, SERVICE
PROVIDERS, EMPLOYEES, AGENTS, OFFICERS,
OR DIRECTORS BE LIABLE FOR: (A) DAMAGES OF
ANY KIND ARISING OUT OF OR IN CONNECTION
WITH PRODUCTS PURCHASED FROM ETEKCITY
CORPORATION IN EXCESS OF THE PURCHASE PRICE
PAID BY THE PURCHASER FOR SUCH PRODUCTS, OR
(B) INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL,
OR PUNITIVE DAMAGES EVEN IF ETEKCITY
CORPORATION OR ONE OF ITS SUPPLIERS HAS BEEN
ADVISED OF THE POSSIBILITY OR LIKELIHOOD OF
SUCH DAMAGES. AND REGARDLESS OF WHETHER
CAUSED BY TORT (INCLUDING NEGLIGENCE), BREACH
OF CONTRACT, OR OTHERWISE. OUR LIABILITY SHALL
UNDER NO CIRCUMSTANCES EXCEED THE ACTUAL
AMOUNT PAID BY YOU FOR THE DEFECTIVE PRODUCT,
NOR SHALL WE UNDER ANY CIRCUMSTANCES BE
LIABLE FOR ANY CONSEQUENTIAL, INCIDENTAL,
SPECIAL OR PUNITIVE DAMAGES OR LOSSES,
WHETHER DIRECT OR INDIRECT. EXCEPT AS COVERED
BY THIS LIMITED PRODUCT WARRANTY STATEMENT,
ETEKCITY CORPORATION SHALL NOT BE LIABLE
FOR COSTS ASSOCIATED WITH THE REPLACEMENT
OR REPAIR OF PRODUCTS PURCHASED FROM
IT, INCLUDING, BUT NOT LIMITED TO, LABOR,
INSTALLATION, OR OTHER COSTS INCURRED BY THE
USER AND, IN PARTICULAR, ANY COSTS RELATING TO
THE REMOVAL OR REPLACEMENT OF ANY PRODUCT.
Other Rights You May Have
SOME JURISDICTIONS DO NOT ALLOW FOR: (1)
EXCLUSION OF IMPLIED WARRANTIES; (2) LIMITATION
ON THE DURATION OF IMPLIED WARRANTIES; AND/
OR (3) EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES; SO THE DISCLAIMERS
IN THIS POLICY MAY NOT APPLY TO YOU. IN THESE
JURISDICTIONS YOU HAVE ONLY THE IMPLIED
WARRANTIES THAT ARE EXPRESSLY REQUIRED TO
BE PROVIDED IN ACCORDANCE WITH APPLICABLE
LAW. THE LIMITATIONS OF WARRANTIES, LIABILITY,
AND REMEDIES APPLY TO THE MAXIMUM EXTENT
PERMITTED BY LAW.
ALTHOUGH THIS LIMITED WARRANTY GIVES YOU
SPECIFIC LEGAL RIGHTS, YOU MAY HAVE OTHER
RIGHTS IN YOUR JURISDICTION. THIS STATEMENT
OF LIMITED WARRANTY IS SUBJECT TO APPLICABLE
LAWS THAT APPLY TO YOU AND THE PRODUCT.
PLEASE REVIEW THE LAWS IN YOUR JURISDICTION TO
UNDERSTAND YOUR RIGHTS FULLY.
Changes To This Policy
We may change the availability of this limited
warranty at our discretion, but any changes will not
be retroactive.
This warranty is made by:
Etekcity Corporation
1775 Flight Way, Suite 150
Tustin, CA 92782
USA
17
Customer Support
If you have any questions or concerns
about your new product, please contact
our helpful Customer Support Team.
©2025 Etekcity Corporation. All rights reserved.
Etekcity and the Etekcity logo are trademarks or
registered trademarks of Vesync Group in the U.S.
and other countries. A more complete list of Vesync
trademarks can be found at https://www.vesync.com/
legal/intellectual-property?lang=en&protocol_id=16
Mon–Fri, 9:00 am–5:00 pm PST/PDT
*Please have your order invoice and
order ID ready before contacting
Customer Support.
Etekcity Corporation
1775 Flight Way, Suite 150
Tustin, CA 92782
USA
Email: support@etekcity.com
Toll-Free: 1-855-686-3835
SUPPORT HOURS
Notes
Notes
MF012125ET-EFS-C671-WUST Manual EN (web)
