- 1. Supply chain / component R&D -
You will be very, very hard pressed to source a pre-existing, high quality, non-exclusive 5.4" display with a hole punch. If you end up doing this as your own startup then you're going to start by trying to buy off the shelf parts to keep costs down. But that display you want is simply not on any of the development roadmaps for the major component manufacturers. The industry has its own momentum, and the component suppliers have also been looking at the trendlines so they are building bigger and bigger.
If you can't find the screen you want in a catalogue then you have to pay someone to build it. Convincing BOE et. al that your phone will sell enough to pay off R&D costs is unlikely, so be prepared to pay several million bucks in NRE to make it worth their time (it might still not be) and the wait a year for them to spin up the fabs. So ~$5M and 9-18 months later you have a display.
- 2. Big players are uninterested, not uninformed -
Big companies are drowning in market data. They know some people really, really want small phones. But it's a long-tail opportunity they're willfully ignoring, and people who need phones will still buy something even if reluctantly. I've been in the meetings, small phone advocacy goes nowhere.
Also I'm a little surprised you're hoping an online petition will work after your prior experience trying to influence your acquirers. I presume you saw the inside of Fitbit / Google and how decisions are made...
I would argue that they don’t know what people want at all, since market data just reinforces previously held assumptions. For example if you surveyed people in 2006 what kind of phone they wanted, most consumers would probably ask for a better flip phone. It wasn’t until Apple came along and defined a new market that Smartphones even became a thing in the mainstream consciousness.
And as OP pointed out, Apple makes a smaller screened smartphone, so they exist. In some comment on this post someone said that it accounts for 3% of Apple's phone sales.
How big is the group of people that want a smaller smart phone but aren't willing or able to switch to Apple? Who knows. My intuition says not many, but maybe we'll find out through OP's efforts. I'm an iPhone user and the only reason I haven't switched to something like the iPhone Mini is because I want the better camera on the pro's.
1. The industry push for thin due to the consumer dislike of thick.
2. The invisible consumer expectation that smaller mobiles should be cheaper.
A mini screen with a fat body (large battery, good camera) is what many functionally oriented people should want, but cost and form will limit consumer desire and make it an extremely niche product?!?
Edit: I am thinking more Canon IXUS cross bred with a 20000mAh powerbank and stock Android One. In fact Canon or another reliable camera brand would be the perfect manufacturer. Fat and robust could work: sell the functionally ugly to practical tradesmen type? Unfortunately writer desires thin and light, which I don’t care about. No need for front-facing camera, instead put a 1” (4:3?) screen on the side of the main camera to allow for pointing/framing when doing selfies.
Functionally oriented people often have other constraints. I have tight constraints for mobiles: I am price sensitive (I break or lose phones), I want vanilla Android (manufacturer skinned often has broken upgrades & broken privacy & broken features), and I generally won’t buy products from extremely niche brands (unpredictable reliability, & trust issues).
https://thenextweb.com/news/bad-news-for-anyone-who-wanted-t...
* “Other manufacturers have managed to make a success of selling high-capacity smartphones. BlackView (and, for that matter, Ulephone, Doogee, and AGM) does especially well. Although they come with ginormous cells, they’re primarily designed to be hardy, and can take more of a beating than Mickey Rourke in the boxing ring.”
* “French smartphone manufacturer Avenir Telecom attempted to crowdfund the P18K on Indiegogo, but ultimately failed in a way that was previously unthinkable for a project that’s attracted so much press coverage and public interest. In total, Avenir Telecom ‘sold’ sixteen (absolute) units.”
* “there are people who would benefit from a phone with a 18,000 mAh battery. I’m talking about military users, people working in the oil and gas industry, famers, and even truckers. Avenir did nothing to cater to this valuable niche.”
* “The P18K, on the other hand, lacked waterproofing and shockproofing, making it thoroughly unsuitable for outdoor users.”
* “Avenir Telecom wanted €600 for a phone with the internals of a €200 phone. Without anything extra – like ruggedization – that’s a hard sell. It just didn’t represent good value for customers.”
* “Measuring several inches thick”
I was exaggerating a little by saying 20000mAh: about 5000 to 10000 would probably be sweet.
Also camera lenses on the P18K were not flush with reverse side - ugggh. There should be a proper shutter button (positioning and half-press to hold focus). Lenses needs protection eg. manual sliding shutter which when opened puts phone into camera mode (I have cracked mobile phone camera lenses).
Plenty of people want a proper waterproof camera (low light, macro, Tele, optical image stabilisation) in their pocket, and why not combine that with hardy mobile phone?
I can imagine making the screen plus battery plus the USB port all as a single user-replaceable part? Those are the usual culprits that get broken or need replacing.
Edit: Slight edits above for clarity. Also see Blackview Pro 11000mAh https://thenextweb.com/news/this-bonkers-chinese-phone-holds...