Analysts from our Wireless Device Strategies (WDS) research service are at the CES trade show this week in Las Vegas, US, from Sunday 5th to Thursday 9th January, 2014.

Our blogs from Day 1 (Monday) and Day 2 (Tuesday) can be viewed here and here.

These are three key trends and important device models we have identified at the event on Day 3 (Wednesday):

1. Phablets are everywhere at the show. They are not a new trend, but they are a growing trend. The rise of the phablet in the US surely means Apple cannot hold back the tide for much longer and it will have to finally launch a 5-inch iPhone worldwide later this year. Samsung, LG, Nokia and other phablet leaders will be looking nervously over their shoulders.

2. Bluetooth remains as popular as ever, from speakers to tablets. It is a great wirefree technology that deserves more credit for its success. Attractive new Bluetooth products continue to be developed, such as Monster's DNA Pro Wireless stereo headphones for high-end consumers. This over-the-ear model may come to challenge the best-in-class Parrot Zik.

3. Sony delivered this week its SmartWear strategy for 2014. It showcased a fitness band and a fitness app for Xperia smartphones. Sony is clearly getting into lifestyle wearables in a big way. However, we caution that Sony's limited mobile presence in the "big two" countries of the US and China, where demand will be greatest, could put a cap on its global ambitions.

Please check back here, every day, to our blog pages for further blogs and daily updates from CES this week.