The batteries will be dead every time you need it
Every. Single. Time
Im not a fan of electronic metrology gear, especially not inexpensive stuff. Yeah, its convenient, right up until its a massive pain in the ass because the battery is dead or sawdust is gumming up a contact or calibration is off somewhere. Looks like that tape in particular is reading the barcode in the center of the tape, i guarantee that the slightest scratch or blemish on it will absolutely destroy the accuracy of the display. Apparently theres also issues on how fast the unit can actually read the tape, so if you pull out the tape too fast, you get an inaccurate measurement.
Again, not fond of batteries in measurement tools, on the low end of things. Go up the price range to get gear thats ip54 rated or similar and wont die the first time dust blows near it and i warm up to batteries a bit, but a $200 Mitutoyo micrometer isnt exactly what were talking about here.