SkyCaddie SX400 Review in The A Position

SkyGolf is a leader in the handheld segment with the SkyCaddie SX500 introduced last year now has a smaller, less expensive version the SkyCaddie SX400.
TheGolfingDads.com Features SkyCaddie SX500 and SX400 in Holiday Gift Guide

Not only do the SkyCaddie SX500 and SX400 give the most accurate yardage I have ever seen in a GPS device but add ons like their green view with all of the slope in great color detail and the ability to keep and track your scores is amazing!
SkyCaddie SX500 and SX400 Featured in Golf Tips 2019 Holiday Gift Guide

It has too-often been said that good things come in small packages, an ancient axiom confirmed with yards to spare since the advent of SkyCaddie’s new SX400 rangefinder, a smaller, more portable cousin to the SX500, but replete with all of the features that made that unit so powerful.
SkyCaddie included in Golfweek article

When trying to choose between a laser or GPS device, players should think about what is really needed to take their game to the next level.