A method for data sharing between a first device and a second device is disclosed. The method includes steps of the first device detecting whether the second device is within a specific range; at least first one of the first device and the second device exchanging at least one spatial condition information through a communication channel if the second device is within the specific range; at least second one of the first device and the second device verifying whether the at least one spatial condition information matches a predefined condition; and the at least second one of the first device and the second device activating data sharing between the first device and the second device when the at least one spatial condition information matches the predefined condition.