Reviews Editor Alan Lu thinks 2015 will be another year of sliding prices and technological refinement rather than dramatic breakthroughs, but he's hopeful of a few major advances too
Better smartphone battery life
Smartphones are great, but their big weakness is short battery life. While manufacturers have mitigated this with more energy-efficient processors and a host of power-saving software tricks, these techniques can only do so much. What’s needed are new types of batteries that last for days, not hours.