− Do not take the
device apart or
deform it. You could
injure your hands or
fingers, or battery
fluid could get into
your eyes or onto
your skin. If you do
come into contact
with the battery
fluid, rinse the
affected area with
plenty of water and
contact your doctor
immediately.
− When using the
device, keep it
at least 20 cm
from implanted
pacemakers or
defibrillators, for
safety reasons, to
prevent them being
affected by it.
− Prolonged contact
with the skin may
cause skin irritation
or allergic reactions
in some people.
− Stop using the
device if:
–your hands or
wrists hurt
–itch
–burn
–or are numb or
stiff, either while
wearing it or
afterwards.
WARNING!
Risk of explosion!
Never throw the device
into the fire! Risk of
explosion!
− Do not use
the device in
potentially explosive
atmospheres. This
includes petrol
stations, fuel storage
areas and areas
where solvents
are processed, for
example. This device
must also not be
used in areas with
particle-laden air
(for example flour or
wood dust).
WARNING!
Risk of fire!
Risk of fire caused
by an unintentional
short-circuit.
− Stop using the
device immediately
and disconnect it
from the USB power
supply:
–if the device
produces unusual
noises or smoke;
–if the device is
damaged by a
liquid or high
moisture levels;
–in emergency
situations.
− Repairs to your
device should only
be carried out by
qualified specialists.
In the event of a
fault, contact our
Service Centre.
Package contents
Please check your purchase
to ensure that all items
are included. If anything is
missing, contact us within 14
days of purchase.
• Strap with sensor unit
• Quick start guide and
warranty documents
Device overview
A
1
3
2
1Display
2Touch field
3Fitness tracker holders
B
4
5
4Pulse sensors
5USB charging
connection
Getting started
Charging the device
− Remove the protective
film from the display 1.
− Remove the sensor
unit from the tracker
by pulling it firmly if
necessary.
− Connect the fitness
tracker to a free USB port
on your PC or laptop
(see Fig. 1).
1
If necessary, use a USB
extension (not
included) to make it
more convenient to
charge the fitness
tracker.
− Make sure that the USB
connection contacts 5
on the fitness tracker
match the contacts on the
USB port on your PC or
laptop.
The fitness tracker vibrates
briefly and the charging
progress is shown on the
display.
If the device does not charge,
turn the display unit over
if necessary and check the
operating state of your PC or
laptop.
Tap the touch field during
charging to view the
current charge level.
Insert the charged sensor
unit with the pulse sensors
facing the inside of the
fitness tracker strap back
into the holders on the
strap 3(see Fig. 2).
2
Switching on the
device
Place the fitness tracker
around your wrist and
fasten it.
The strap should not be
too tight or too loose for
your wrist. It is worn in the
same way as a conventional
wristwatch.
− Press and hold the touch
field 2on the fitness
tracker for approx. 3
seconds until the device
vibrates and the display
lights up.
The device is now switched on
and the home screen with the
time is shown on the display
1(see Fig. 3).
3
MEDION®Fitness app
Download the associated
fitness tracker app,
MEDION Fitness, free of
charge from the Apple App
Store or Google Play Store.
Alternatively, use the QR code
below to download the app
automatically:
Apple App
Store/
Google Play
Store
Connecting a device
via Bluetooth®
A Bluetooth
connection is an
unencrypted wireless
data transfer system
which is unprotected
against unauthorised
third parties.
Enable Bluetooth on your
smartphone/tablet PC and
start the MEDION®Fitness
app.
The app now displays a list
of all fitness trackers within
range.
Select your fitness tracker
(S3750) from the list of
devices.
A rotating circle is now
displayed on your fitness
tracker for 10 seconds.
− Within these 10 seconds,
press and hold the touch
field for at least 2 seconds
to confirm the connection
between the devices.
Once the connection is
successful, a green check mark
is shown on the fitness
tracker display.
If you do not confirm
the connection on the
fitness tracker within
10 seconds, you must
repeat the connection
process using the app.
Switching off the
device
− Tap on the touch field
until the switch-off icon
is displayed.
− Press and hold the touch
field for approximately 4
seconds.
The countdown to switch off
is shown on the display. The
device switches off after 3
seconds.
Declaration of
conformity
MEDION AG hereby
declares that this
device complies with the
fundamental requirements
and the other relevant
provisions of:
• Radio Equipment
Directive 2014/53/EU
• RoHS Directive 2011/65/EU
You can download the
complete EU Declaration
of Conformity at
www.medion.com/conformity.
Trademark
information
The Bluetooth® word mark
and logos are registered
trademarks of Bluetooth SIG,
Inc. and are used by MEDION
under licence.
The USB™ word mark
and logos are registered
trademarks of the USB
Implementers Forum, Inc. and
are used by MEDION under
licence.
Other trademarks are the
property of their respective
owners.
Technical specifications
CPU: Nordic NRF52832
Integrated battery: Li-Ion battery 3.7V / 90mAh
Operating temperature: 0°C to +40°C, max. 90% RH
Storage temperature: -10°C to 45°C
Battery charging time: Approx. 120 minutes
Battery capacity: Up to 7 days
Charge connection: USB 2.0
Power supply: 5V 500mA
Bluetooth®version: 4.0 LE
Bluetooth range: Approx. 10 m
Bluetooth frequency range: 2402 to 2480 MHz
Max. Bluetooth
transmission power:
-1.99 dBm
Protection class: IP68, immersion depth max.
1.5 m for max. 30 minutes
Dimensions: 42 mm x 21 mm x 13 mm
Wrist circumference: Max. 220 mm
Weight incl. strap: 24 g
Disposal
PACKAGING
Your device has been packaged to protect it from
damage in transit. The packaging is made of materials
that can be recycled in an environmentally friendly
manner.
DEVICE
Old devices that carry the symbol illustrated may not be
disposed of in ordinary household waste.
In accordance with Directive 2012/19/EU, these devices
must be disposed of correctly at the end of their service life.
This involves separating the materials in the devices for the
purpose of recycling and minimising the environmental impact.
Take old devices to a collection point for electrical scrap or a
recycling centre. The integrated battery cannot be removed.
Take the entire device for disposal.
Contact your local waste disposal company or your local
authority for more information on this subject.
Legal Notice
Copyright © 2021
Date: 01.09.2021
All rights reserved.
These operating instructions
are protected by copyright.
Mechanical, electronic and any
other forms of reproduction
are prohibited without the
written permission of the
manufacturer.
Copyright is owned by the
distributing company:
MEDION AG
Am Zehnthof 77
45307 Essen
Germany
Please note that you cannot
use the address above for
returns. Please always contact
our Customer Service team
first.