Table 2: Notes on hardware comparison.

SystemAcentasActivioPolarSuunto

Instruction manual
(language, comprehensibility, volume, usefulness)
(i) Short and compact but sufficient (+)(i) Very detailed IM in English (+)
(ii) Easily comprehensible (+)
(i) Short instruction in six languages (+)
(ii) Laminated (+)
(iii) Personal instruction by member of staff (+)
(iv) Useful (+)
(v) Only short hardware & installation instruction (−)
(i) No instruction manual (−)

Packing
(quality, handling)
(i) Compact backpack (<1 kg) (+)
(ii) Good accessibility & separation of hardware (+)
(iii) Poor quality of packing system (−)
(i) Good arrangement of hardware (+)
(ii) Heavy (+2 kg) (−)
(iii) Hardware & software not fixed in packing (−)
(iv) Poor quality of packing system (−)
(i) Carrying case (+)
(ii) Good quality of packing system (+)
(iii) Good arrangement of single system parts (+)
(iv) Heavy (~3 kg) (−)
(i) Carrying case (+)
(ii) Lightweight (~1kg) (+)
(iii) Poor arrangement of hardware (−)

Chest belt
(storage, battery, quality)
(i) Simple snap closing (+)
(ii) Water resistant (+)
(iii) Very good battery (+)
(iv) No internal storage (−)
(i) Simple snap closing (+)
(ii) Water resistant (+)
(iii) Very good battery (+)
(iv) No internal storage (no rating) (−)
(i) Bluetooth USB stick for storage unit (+)
(ii) High storage capacity (+)
(iii) Small, bulky snap closing (−)
(iv) Poor battery (−)
(i) USB reader for storage unit (+)
(ii) Two types of chest belt (±)
(iii) Small snap closing (−)
(iv) No driver for USB (& not found on homepage) (−)
(v) Low storage capacity (−)

Receiver
(power consumption, quality, handling, connectivity)
(i) Lightweight (~150 g) (+)
(ii) Connection only via 150 cm USB cable (±)
(iii) Water repellent (+)
(iv) Power connection via USB from computer (+)
(i) Similar to Acentas system (±)
(ii) Satisfactory quality (±)
(iii) Power connection via USB from computer (+)
(iv) Heavy weight antenna (~500 g) (−)
(i) Best quality (+)
(ii) Power independent from computer (±)
(iii) LAN and WLAN connection (+)
(iv) Very heavy (~3 kg) (−)
(v) WLAN connection only <50 m (−)
(vi) WLAN energy consuming (−)
(vii) Plug and power cable necessary (−)
(i) Lightweight (+)
(ii) Good quality (+)
(iii) Power connection via USB from computer (+)
(iv) USB cable cannot be unplugged (−)
(v) Control LED missing (−)