User's Manual
• If the Bluetooth can’t connect occasionally, iOS phone should turn on Bluetooth in
setting, ignore binding bracelet device, and re-open YUNMAI APP for pairing.
• Bluetooth service of some phones will show abnormality sometimes, it usually can
be solved after reopening the Bluetooth or restarting the phone.
How to update bracelet firmware?
• Connect bracelet with phone, enter “Me” in YUNMAI APP, click “Device”, and
choose “firmware upgrade”.
Appendix
Fitness goals
It helps you know the test and improvement of heart rate zones for your fitness by
understanding and using the following principles.
• Your heart rate situation is a good test method for high strength training.
• It helps to improve cardiovascular capacity and strength for training in fixed heart
rate zones.
• It will prevent you from excessive training and decrease possibility of injury if you
have knowledge of heart rate zone.
If you know your max heart rate, you can decide the best heart rate zone to your
fitness goal by checking the computation sheet of heart rate zone. If you don’t know it,
you can inquire it online as some fitness center will also provide test item of max heart
rate. The HRmax is defaulted as 220 minus your age.
Zone
HRmax%
Self-feeling
Benefits
1
50-69%
Confortable and relaxed, low
cardiovascular load, and a
bit deep breath.
Improve general basic training,
recovery capacity and metabolism.
2
70-84%
Rhythmed stride and steadily
controlled rapid breath.
Improve genearal fitness training
level, tolerance ability for medium
level training and training efficiency.
3
Over 85%
Failure to maintain the body
and feel very tired in
breathing and muscle.
The maximal expending of breath
and muscle or close to the max.
Toxic and harmful substance introduction of electronic information products
Conponent
name
Toxic and harmful substance or element
Pb
Hg
Cd
Cr6+
PBB
PBDE
Bracelet
body
X
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Battery
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