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Astro®
$ 449.99 USD - $ 599.99 USD

Alpha®
$ 599.99 USD - $ 799.99 USD
Remove Row Unit dimensions, WxHxD: 2.4" x 6.3" x 1.4" (6.1 x 16.0 x 3.6 cm) 2.5 x 6.5 x 1.5” (6.4 x 16.5 x 3.8 cm)
Remove Row Display size, WxH: 1.43" x 2.15" (3.6 x 5.5 cm); 2.6" diag (6.6 cm) 1.53"W x 2.55"H (3.8 x 6.3 cm); 3" diag (7.6 cm)
Remove Row Display resolution, WxH: 160 x 240 pixels 240 x 400 pixels
Remove Row Display type: transflective, 65-K color TFT transflective, 65-K color TFT touchscreen
Remove Row Weight: 9.2 oz (260.1 g) with batteries 8.8 oz (250 g) with standard antenna and battery
Remove Row Battery: 2 AA batteries (not included); NiMH or Lithium recommended rechargeable lithium-ion (included)
Remove Row Battery life: up to 20 hours up to 20 hours (Alpha 100)
Remove Row Waterproof: yes (IPX7) yes (IPX7)
Remove Row Floats: no no
Remove Row High-sensitivity receiver: yes yes
Remove Row Interface: USB USB
Remove Row Basemap: yes yes
Remove Row Preloaded maps: no yes (topographic)
Remove Row Ability to add maps: yes yes
Remove Row Built-in memory: 1.7 GB 8.0 GB
Remove Row Accepts data cards: microSD™ card (not included) microSD™ card (not included)
Remove Row Waypoints/favorites/locations: 2000 4000
Remove Row Routes: 200 200
Remove Row Track log: 10,000 points, 200 saved tracks 10,000 points, 200 saved tracks
Remove Row Automatic routing (turn by turn routing on roads): yes (with optional mapping for detailed roads) yes (with optional mapping for detailed roads)
Remove Row Touchscreen: no yes
Remove Row Electronic compass: yes (tilt-compensated, 3-axis) yes (tilt-compensated, 3-axis)
Remove Row Barometric altimeter: yes yes
Remove Row Camera: no no
Remove Row Photo navigation (navigate to geotagged photos): NA NA
Remove Row Picture viewer: no no
Remove Row Custom maps compatible: yes yes
Remove Row Geocaching-friendly: yes (paperless) no
Remove Row Hunt/fish calendar: yes yes
Remove Row Sun and moon information: yes yes
Remove Row productSpecTideTables: yes yes
Remove Row Area calculation: yes yes
Remove Row Custom POIs (ability to add additional points of interest): yes yes
Remove Row Unit-to-unit transfer (shares data wirelessly with similar units): yes yes
Remove Row Garmin Connect™ compatible (online community where you analyze, categorize and share data): yes yes
Remove Row Additional:

Range: T 5: 9 miles (line of sight)

Frequency band: MURS (The T 5 and TT™ 15 are only compatible with the Astro® 320 and the Alpha™ 100. The T 5 and TT 15 can be configured for operation with either handheld but cannot be tracked simultaneously by both the Astro 320 and the Alpha 100)

Vibration mode: yes

Tracks up to 10 dogs simultaneously

 

Specs for the T 5 dog device

Range: up to 9 miles line of sight

Frequency band: MURS (The T 5 and TT™ 15 are only compatible with the Astro® 320 and the Alpha™ 100. The T 5 and TT 15 can be configured for operation with either handheld but cannot be tracked simultaneously by both the Astro 320 and the Alpha 100.)

Tracks up to 20 dogs (TT10) and buddies (Alpha 100) simultaneously

 

Specs for the TT™ 15 dog device