There's no shortage of mid-range phones with multi-day batteries in these times. If you want a 4,000mAh phone for a couple hundred bucks, you've got it. A 5,000mAh brick for even less? Cheers. A 6,000mAh device? You'll either have to wait to spend beaucoup bucks on the Asus ROG Phone II or, perhaps better yet, you should move to India: there have been some signals that Samsung is ready to ride that power pack with a new Galaxy M series phone.

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