Picture quality is becoming a key differentiator for Android manufacturers, and many are racing to offer unique features that will make their devices stand out. Nokia is expected to launch a phone with five lenses, Google has developed an algorithm to improve low-light photography, and Samsung built a variable aperture technology into the Galaxy S9. To make its cameras even better, the Korean firm has allegedly bought Corephotonics, an Isreali company known for developing powerful lenses with optical zoom.

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