HR: Heart Rate / Pulsfrequenz
| Suunto t Serie | ||||
| BASIC FUNCTION / Calendar | Suunto t1 | Suunto t3 | Suunto t4 | Suunto t6 |
| Time, date, weekday | yes | yes | yes | yes |
| Dual time | yes | yes | yes | yes |
| Number of daily alarms | 1 | 1 | 1 | 3 |
| User replaceable battery (watch) | yes | yes | yes | yes |
| User replaceable battery ( HR belt) | yes | yes | yes | yes |
| Backlight | yes | yes | yes | yes |
| TRAINING FUNCTIONS | ||||
| ANT - digitylly coded heart rate signal | yes | yes | yes | |
| Average HR in real time | yes | yes | yes | yes |
| HR Limit Alarm | yes | yes | yes | yes |
| Number of adjustable HR zones | 3 | 3 | 3 | 1 |
| Stopwatch | yes | yes | yes | yes |
| Accurate calories | yes | yes | yes | on PC |
| Timers (interval, warm-up, countdown) | - | yes | yes | yes |
| Training Effect | - | - | - | on PC |
| Suunto Coach | - | - | - | - |
| Speed distance function | - | - | - | yes |
| ANT digitally coded speed and distance signal | - | - | - | yes |
| Altimerter functions | - | - | - | yes |
| Weather functions | - | - | - | yes |
| PC Software | - | - | - | yes |
| MEMORY | ||||
| Capacity | 1log | 15 logs | 15 logs | 25logs |
| Start time & duration of workout | yes | yes | yes | yes |
| Total calories | yes | yes | yes | on PC |
| Average peak heart rate | yes | yes | yes | yes |
| Number of laps | 30 | 50 | 50 | 100 |
| Average heart rate of each leap | yes | yes | yes | yes |
| Time spent below/above/in each zone | yes | yes | yes | yes |
| Training effect | - | yes | yes | on PC |
| Speed & Distance | - | yes | yes | yes |
| Total aschent,deschent+altitude profile | - | - | - | yes |
| Heart rate interval recording (R-R) | - | - | - | 100.000 beats |
| Detailed analyses of 7 body parameters | - | - | - | on PC |
| Workout summary | 2 months | 6 months | 6 months | Manually resettable |
| Extras | ||||
| replaceable straps | yes | yes | yes | - |
| Suunto teams compatible | yes | yes | yes |