Blackview BV9900/9800. It's an armoured phone that runs on Android, made for industrial & outdoorsy environments. If you get the phone case/screen protector too it'll basically be indestructible. I've had mine for >5years, dropped it on the ground numerous times, hard tarmac, concrete, stood on it. Still going strong and the screen is unaffected. The downside is the weight, most of it is a massive battery that lasts about 2 weeks. The camera isn't great, dropping it on your foot hurts, but if you're a big bloke not an instagram model it shouldn't matter.