Digital vs Analog (mechanical) bathroom scale , about 2 lbs difference in weight and maybe $10 in price. Though the differences may vary. The digital scale cost $19.95 the analog (dial) scale cost $11.97. Digital scales are usually considered to be more accurate because they self reset to zero.
The important part about using a scales is the ability to reset it to zero. The analog scale has a dial at the bottom where you can manually set it to zero.
Bathroom scales can be used as an effective way to measure weight gain or weight loss but it is important to try to use the same scale for consistency.
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