List of longest smartphone telephoto lenses

This is a list of smartphones with a telephoto lens that offers a focal length (35 mm equivalent) of at least 100 mm or "4× optical zoom" with an imaging area equivalent to a 1/3.5″ (inches) or larger sensor.

Smartphone lenses are often marketed in terms of "optical zoom"^[1] relative to the phone's main camera. For example, 120 mm is usually referred to as "5× optical zoom", because the main camera's focal length is commonly around 24 mm. However, only a few smartphones, such as the Sony Xperia 1 IV and V, include a true zoom lens that offers continuous optical zoom, whereas nearly all smartphones feature a collection of prime lenses interpolated by digital zoom. To fit large focal length the 2010s-era Samsung Galaxy Zoom series of phone-camera hybrids use a retractable lens design, while newer zoom-equipped phones mostly use periscope lenses.^[2][3]

In a fixed space, greater focal lengths further constrain the size of the image sensor. However some manufacturers have recently been able to improve image quality by using a lens with a slightly shorter focal length but a much larger sensor.^[4] For example, the Vivo X90 Pro+'s 90 mm lens still has a 60% larger effective sensor area when digitally cropped to match the field of view of the X80 Pro's 125 mm lens.^[a]

This list excludes lenses using sensors smaller than 1/3.5″, which seems to be a lower bound for acceptable image quality (most compact travel zoom cameras use 1/2.3″ sensors, which are more than twice^[b] as large).

• List of superzoom lenses
• List of superzoom compact cameras
• List of large sensor camera phones