It is another GPS tracking device that comes with wrist watch design, named GPS Tracker 005 that produce by Holux. The Holux GPS Tracker 005 equipped with built-in GSM SIM card, so it can send the location via SMS and other channel. It support real time tracking as well as send data every 15 minutes. It able to download ephemeris data via internet that aimed for improve satellite fix times. It is water resistant that use IPX6 technology, so you can use it when you hiking or do other outdoor activity. For more details of Holux GPS Tracker 005 read the specs below.