Electronic device for measuring information regarding human body and operating method thereof

1. An electronic device for measuring user body information, the electronic device comprising:

a touch screen display;

a first coil and a second coil disposed under the touch screen display; and

at least one processor configured to:

detect, by using the touch screen display, a contact of a user's body portion on at least two spots of the touch screen display,

in response to detecting the contact of the user's body portion on the at least two spots of the touch screen display, generate a first current on the first coil by applying power to the first coil in the electronic device,

detect a second current induced across the second coil after a current is induced across the user's body portion based on the generated first current, and

obtain the user body information based on a difference between the generated first current and the detected second current.

2. The electronic device of claim 1 , wherein the at least one processor is further configured to:

identify at least one of a contact area, a contact position, or a contact time for the user's body portion, and

detect the contact of the user's body portion based on the identification.

3. The electronic device of claim 1 , wherein the at least two spots of the touch screen display are previously set and displayed on the touch screen display.

4. The electronic device of claim 1 , wherein the first coil is formed of a transparent film and embedded in the electronic device.

5. The electronic device of claim 1 ,

wherein the second current is induced across the second coil based on a second magnetic field generated by the current induced across the user's body portion.

6. The electronic device of claim 5 ,

wherein the second coil is formed of a transparent film and embedded in the electronic device, and

wherein the second coil and the first coil are wound in opposite directions.

7. The electronic device of claim 1 ,

wherein the at least one processor is further configured to charge the electronic device using a third current induced across the second coil in the electronic device by a third magnetic field generated from outside the electronic device.

8. The electronic device of claim 7 , wherein the at least one processor is further configured to:

determine whether to charge the electronic device based on at least one of an obtained user input, an application related to the charging, a magnitude of the third current, or a magnitude of an impedance measured by the third current, and

based on determining to charge the electronic device, charge the electronic device by using the third current.

9. The electronic device of claim 8 , wherein the at least one processor is further configured to:

detect a voltage at one of the at least two spots of the touch screen display, and

obtain the user body information based on the voltage.

10. The electronic device of claim 9 , wherein the at least one processor is further configured to:

compare the voltage with a preset first threshold voltage, and

obtain the user body information based on the comparison.

11. The electronic device of claim 10 , wherein the preset first threshold voltage is set to a voltage sensed by the contact of the user's body portion at one of the at least two spots of the touch screen display before the power is applied to the first coil.

12. The electronic device of claim 1 , wherein the user body information comprises at least one of body composition information, body fat information, body fat-free information, body water information, body muscle information, body protein information, or body mineral information for the user's body portion.

13. The electronic device of claim 1 , wherein the at least one processor is further configured to:

identify a contact area for the user's body portion, and

compensate for the obtained user body information based on the identified contact area.