That's not a great deal to go on, of course, but we can speculate on the Nokia 4's specification based on what the phones that sit either side of it in the line-up offer:
|Nokia 3||Nokia 5|
|Operating System||Android 7.0 Nougat||Android 7.1.1 Nougat|
|Display||5in HD (1280x720, 16:9) IPS with Gorilla Glass 3||5.2in HD (1280x720, 16:9) IPS with Gorilla Glass 3|
|Processor||1.3GHz MediaTek 6737 quad-core processor||Qualcomm Snapdragon 430|
|Memory||2GB RAM||2GB RAM|
|Storage||16GB plus microSD up to 128GB||16GB plus microSD up to 128GB|
|Connectivity||4G LTE Cat 4, Micro-USB 2.0, Bluetooth 4.1, Wi-Fi, NFC for sharing||4G LTE Cat 4, Micro-USB 2.0, Bluetooth 4.1, Wi-Fi, NFC for sharing|
|Audio||3.5mm headphone jack, mono speaker||3.5mm headphone jack, mono speaker, smart amp|
|Primary Camera||8Mp, 1.12um, f/2.0, autofocus, LED flash||13Mp, 1.12um, f/2.0, PDAF, dual-tone LED flash|
|Selfie Camera||8Mp, 1.12um, f/2.0, autofocus||8Mp, 1.12um, f/2.0, autofocus|
A likely spec for the Nokia 4 might include a 5.1in HD (1280x720, 16:9) screen, the 1.3GHz Snapdragon 212 quad-core processor, Adreno 304 GPU, 2GB of RAM, 16GB of storage (with microSD support up to 128GB), 4G LTE Cat 4, Micro-USB 2.0, Bluetooth 4.1, Wi-Fi, NFC for sharing, a 3.5mm headphone jack, a mono speaker and a 2800mAh battery.
If Nokia does opt for Qualcomm's 200-series we cannot expect any more than 8Mp on the camera, so it might share the same camera specifications as the Nokia 3.
How much will the Nokia 4 cost?
It's likely the Nokia 4 will sit in between the 3 and 5 at around £149.99.
When is the Nokia 4 release date?
This is almost impossible to predict, given that Nokia tends to announce phones intended for sale in the EU at big tradeshows such as MWC (25 February) and IFA (31 August), but it also holds smartphone launches in China on seemingly random days. In common with the Nokia 6, the Nokia 4 could launch in China first.
Assuming that it won't, and given that MWC is a bit too close when considering how many Nokia 4 rumours we've seen, for now our money is on an IFA 2018 launch.
We'll update this article when we hear more.
Also see: What to expect from MWC 2018
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