Arlo Ultra 2 cameras are often mounted outdoors for driveway, yard, or entry monitoring, where sun exposure and weather cycles steadily stress plastics and optics. A sun-damaged lens or clouded cover can permanently reduce image clarity; combined with battery aging, it can make "fixing" an older unit feel like chasing multiple wear items.
Repair is most attractive when the problem is isolated-swapping a battery, cleaning contacts, or replacing a protective lens cover/seal-while the camera electronics remain stable and the mount location is valuable. Replace becomes the better call when the lens damage is severe, water ingress is suspected, or the camera frequently disconnects (radio or power management wear).
Also consider subscription costs and ecosystem changes: if the camera is older and reliability is slipping, replacement can reduce the chance of blind spots during critical events. If restoring optics plus battery approaches the threshold, replacement usually delivers clearer results.