There are smartwatches, there are running watches, there are fitness trackers, there are heart rate monitors, and there are watches for triathletes. The new Garmin Forerunner 735XT aims to be all of those things in a single device.

Can track running; swimming and biking; Very accurate location info; Comprehensive Garmin Connect app; Excellent battery life

Expensive; Heart rate could be more accurate

Fitness is the new obsession that many hardware manufacturers wish to capitalise on with from wearables for counting steps and measuring sleep to watches meant for hardcore marathon runners.

I purchased this watch about a year ago and do moderate activity. About a week ago i noticed the screen had cracked & I know i did not do any sort of hard core activity to cause the screen to break or even hitting the screen on a hard surface.

The Garmin Forerunner 735XT is a hardcore fitness tracker designed for triathletes and those who become excited by the prospect of a Tough Mudder challenge. It can be bought as a standalone unit (￡360) or as a Tri Bundle (￡450), which includes Garmin's advanced HRM Tri and HRM Swim chest straps.

Robust design; Great multi-sport support; Good coaching and activity tracking

App is difficult to navigate; Not the best-looking watch around

it 's a great product, but for me , i found it , to complicated, or some time confusing , to monitor, my activities, to many buttons to choose from , specially in multi sport, I would like to see better manual on the product,

This is a powerful training watch. However the design is very small for my usage. I would stay with the more expensive Fenix 3 HR over this one. You can also consider Polar m400 or Polar v800.

I wanted a GPS fitness watch that was also a smart watch not the other way around. It needed to have built in heart rate and activity tracking as well. This watch meets my goal of focusing primarily on fitness while also being water proof.

weights; "always on" feature; waterproof; audible and vibration notification; music control; long battery life; excellent value (on sale

special charge cord, losses Bluetooth connectivity, still expensive, not running the latest Garmin Connect SDK; No barometer, altimeter, or compass built in; Guess I'd need the crazy expensive Fenix 5 series for that

The Garmin Forerunner 735XT is meant for hard-core athletes, such as those into multi-sports such as triathlon and who are already logged into serious fitness regimes. This is one of the premium options for such athletes and provides complete analysis of their progress and endurance abilities.

Multi-sport watch; accurate monitoring; detailed analysis

Bland looks; little bulky

The Garmin Forerunner 235 is one of my favorite running watches and for good reason: It has everything runners need to take their training to the next level. It's not ideal for multisport athletes, though.

Lightweight and waterproof, and has GPS for tracking a variety of sports and an optical heart-rate sensor; All-day activity tracking, interval training and phone notifications are helpful; There's a multisport mode to time triathlon transitions and easily switch sport profiles.

It's expensive; there's no altimeter for measuring ascent and descent; and battery life may not be long enough for a full Ironman triathlon

The Garmin Forerunner 235 is one of my favorite running watches and for good reason: It has everything runners need to take their training to the next level. It's not ideal for multisport athletes, though.

The Forerunner 735XT is an exceptional watch for serious triathletes, but there are better and cheaper alternatives for both dedicated runners and more casual athletes.

Lightweight and waterproof, and has GPS for tracking a variety of sports and an optical heart-rate sensor; All-day activity tracking, interval training and phone notifications are helpful; There's a multisport mode to time triathlon transitions and easily switch sport profiles; It's compatible with a wide-range of Garmin accessories.

It's expensive; there's no altimeter for measuring ascent and descent; and battery life may not be long enough for a full Ironman triathlon.