Gate Opener Remote Controls

Hydraulics or gears, which of them is better in terms of durability and maintenance installing automatic Gate?

I have a steel gate at home and i am thinking of installing automatic gate (opens with remote control). I have received quotation from different companies and some of them are using hydraulics to open and close and some using gears.
each of them claims to be better than the other.
Since this is my first time and had no experience or knowledge about it.
I would like to know which is better in terms of durability, maintenance (cheaper to maintain)
Help please
thanks

i would go with hydraulics, it might open slower but will last longer

The Gate Door Magnetism Alarm with Remote Control LK-6688

Compare_______________________________________________________

NX AUTOMATIC REMOTE BOTTLE OPENER $376.42 NX AUTOMATIC REMOTE BOTTLE OPENER

ATA remote controller ,433.92MHZ ,compatible with ATA PTX-4 code remote,ATA opener remote controller $235 compatiable with ATA code,433.92mhz, rolling code ATA remote,work with smart gate motor ,250 million rolling code

GTO FM148 Push To Open Post Bracket Gate Opener $15.71 GTO FM148 Push To Open Post Bracket Gate Opener GTO FM148 Push To Open Post Bracket Gate Opener Features: Gate opener Push to open For swing gates only Useful on sloping driveways or where space prevents a gate from opening inward 5″ x 3″ x 11.5″

GTO FM136 Wireless Intercom and Keypad Gate Opener $179.68 GTO FM136 Wireless Intercom and Keypad Gate Opener GTO FM136 Wireless Intercom and Keypad Gate Opener Features: Intercom and keypad gate opener Wireless Can hold up to 25 entry codes Indoor base unit allows property owner to communicate and accept or deny access with the touch of a button Provides range up to 500 feet wirelessly Base unit is mobile and can be used anywhere in your home

Chamberlain KLIK1U Compact 2-Button Universal Garage Remote $27.33 Whether you're replacing a lost or stolen opener or your current garage door or gate opener is just worn out, the Compact 2-Button Universal Garage/Gate Remote from Chamberlain is the perfect product for you. Type: Accessories

______________________________________________________________