Both have screen protectors.
Helix 7 SI G2N with Navionics built in. $ 500.00
Garmin Striker Plus 9 SV $ 450.00 .
All brackets , cables , and transducers included . Both units are about a year old . I have the box for the Garmin . Shipping is included in the price .
Pm me for questions . Located in Decatur Alabama.