Four exercises, counted by the camera

Push-ups and squats are counted from the front, crunches and plank from the side. Each one has its own setup and its own signals, and the plank is timed in seconds instead of reps.

Setup

Where the phone goes, what it reads

One phone and a patch of floor. No equipment.

Push-ups

Chest, triceps, front shoulders, core

Phone: Phone stands in front of you, screen facing you
Counts: How far your arms fold and how much wider your shoulders look as you come down.

Squats

Quads, glutes, hamstrings, core

Phone: Phone stands in front of you, full height in frame
Counts: How far your hips drop and how much shorter your whole figure gets.

Crunches

Abdominals, hip flexors

Phone: Phone stands to the side, at hip level
Counts: The angle between your torso and thighs, and how close your shoulders come to your knees.

Plank

Core, shoulders, glutes

Phone: Phone stands to the side, at hip level
Counts: A straight line through shoulders, hips and knees, held still. The timer runs while the pose holds.

Push-up variations 30-day squat challenge Plank challenge Programs Tools