It seems to me that Android phones have recently passed the stage where hardware advances are well ahead of software bloat. This is the point that desktop PCs passed about 15 years ago and laptops passed about 8 years ago. For just over 15 years I’ve been avoiding buying desktop PCs, the hardware that organisations I work for throw out is good enough that I don’t need to. For the last 8 years I’ve been avoiding buying new laptops, instead buying refurbished or second hand ones which are more than adequate for my needs. Now it seems that Android phones have reached the same stage of development.
3 years ago I purchased my last phone, a Nexus 6P . Then 18 months ago I got a Huawei Mate 9 as a warranty replacement  (I had swapped phones with my wife so the phone I was using which broke was less than a year old). The Nexus 6P had been working quite well for me until it stopped booting, but I was happy to have something a little newer and faster to replace it at no extra cost.
Prior to the Nexus 6P I had a Samsung Galaxy Note 3 for 1 year 9 months which was a personal record for owning a phone and not wanting to replace it. I was quite happy with the Note 3 until the day I fell on top of it and cracked the screen (it would have been ok if I had just dropped it). While the Note 3 still has my personal record for continuous phone use, the Nexus 6P/Huawei Mate 9 have the record for going without paying for a new phone.
A few days ago when browsing the Kogan web site I saw a refurbished Mate 10 Pro on sale for about $380. That’s not much money (I usually have spent $500+ on each phone) and while the Mate 9 is still going strong the Mate 10 is a little faster and has more RAM. The extra RAM is important to me as I have problems with Android killing apps when I don’t want it to. Also the IP67 protection will be a handy feature. So that phone should be delivered to me soon.
Some phones are getting ridiculously expensive nowadays (who wants to walk around with a $1000+ Pixel?) but it seems that the slightly lower end models are more than adequate and the older versions are still good.
If I can buy a refurbished or old model phone every 2 years for under $400 that will make using a phone cost about $0.50 per day. The Nexus 6P cost me $704 in June 2016 which means that for the past 3 years my phone cost was about $0.62 per day.
It seems that laptops tend to last me about 4 years , and I don’t need high-end models (I even used one from a rubbish pile for a while). The last laptops I bought cost me $289 for a Thinkpad X1 Carbon  and $306 for the Thinkpad T420 . That makes laptops about $0.20 per day.
In May 2014 I bought a Samsung Galaxy Note 10.1 2014 edition tablet for $579. That is still working very well for me today, apart from only having 32G of internal storage space and an OS update preventing Android apps from writing to the micro SD card (so I have to use USB to copy TV shows on to it) there’s nothing more than I need from a tablet. Strangely I even get good battery life out of it, I can use it for a couple of hours without the battery running out. Battery life isn’t nearly as good as when it was new, but it’s still OK for my needs. As Samsung stopped providing security updates I can’t use the tablet as a SSH client, but now that my primary laptop is a small and light model that’s less of an issue. Currently that tablet has cost me just over $0.30 per day and it’s still working well.
Currently it seems that my hardware expense for the forseeable future is likely to be about $1 per day. 20 cents for laptop, 30 cents for tablet, and 50 cents for phone. The overall expense is about $1.66 per month as I’m on a $20 per month pre-paid plan with Aldi Mobile.
A laptop is very important to me, the amounts of money that I’m spending don’t reflect that. But it seems that I don’t have any option for spending more on a laptop (the Thinkpad X1 Carbon I have now is just great and there’s no real option for getting more utility by spending more). I also don’t have any option to spend less on a tablet, 5 years is a great lifetime for a device that is practically impossible to repair (repair will cost a significant portion of the replacement cost).
I hope that the Mate 10 can last at least 2 years which will make it a new record for low cost of ownership of a phone for me. If app vendors can refrain from making their bloated software take 50% more RAM in the next 2 years that should be achievable.
The surprising thing I learned while writing this post is that my mobile phone expense is the largest of all my expenses related to mobile computing. Given that I want to get good reception in remote areas (needs to be Telstra or another company that uses their network) and that I need at least 3GB of data transfer per month it doesn’t seem that I have any options for reducing that cost.