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Compare OPPO R15 Pro and OPPO R15 Neo and OPPO R17 Pro and OPPO R17 Neo and iPhone XS Max and OPPO AX7 by weight and lightness graphs.

There is quite a difference in weight between different phones. If you are going to hold the phone in one hand for a long time, it is recommended to have the lightest phone possible. Note that the more battery capacity you have, the heavier the weight will be.