The following are the top ten most valued mobile phones:
iPhone 1 prototype in pre-production - £10,000+
Although the iPhone is Apple's first "official" phone, the company reportedly considered it 25 years ago. Designer Hartmut Esslinger, who also designed the Apple IIc computer, created this phone/tablet prototype in 1983.
The iPhone idea from 1983 was obviously never put into production, but it's still a great concept. Although, given that we have internet banking, writing an actual electronic check seems a bit ridiculous.
Motorola 8000x £800 - £3,500
Nokia 7700 - £1,000 - £2,000
Mobira Senator NMT- £800 - £2,000
IBM Personal Communicator Simon - £800 - £2,000
The Nokia Sapphire 8800 costs between £500 and £2,000, depending on the model.
Technophone PC105T £600 - £1,500
Orbitel Citiphone £600 - £1,000
Ericsson R290 Satellite Phone £300 - £1,000
Rainbow StarTAC £100 - £400
Software, model, cult status, and rarity are just a few of the reasons that may make an ancient phone expensive.
Some pointers on how to acquire antique cellphones
Examine the condition of the phone; items in their original packaging, complete with full paperwork and accessories, will sell for more money.
Find the phone's unique selling point; icon status and technical accomplishments are much more significant than age alone.
Understand how to make advantage of technology. Many old phones don't operate because of the battery or because they can't connect to the internet; this isn't necessarily a bad thing; however, make sure you know why it doesn't work.
Examine the phones and, most importantly, ensure that you understand the differences between models that haven't changed much; the price difference may be substantial.
Images from wikipedia