Echo CS-680 vs Echo CS-7310P
Tinted cells mark the better figure on that row alone: more engine, longer bar, lighter, cheaper. A lighter weight is only a win on the same basis.
What owners like and complain about
Echo CS-680
- 66.8cc with a low, torquey power delivery owners describe as built like saws used to be
- Adjustable oiler with a manual override — genuinely useful running long bars in dry hardwood
- Rim sprocket, aluminium handle with rubber grip and PowerMatch bar are proper pro-grade parts
- Top-mounted tool-less air filter cover keeps in-field servicing quick
- Takes bars up to 27 inches, covering real felling work
- 5-year consumer warranty on a saw in this class
- Owners who have run both say the lighter CS-620P out-cuts it with anything under a 24-inch bar
- 14.6 lb powerhead and a slow-revving character make it tiring next to modern 70cc saws
- Plastic sprocket cover where the cheaper CS-620P gets magnesium
- An older design that Echo has not refreshed alongside the X Series saws
- $779.99-$799.99 puts it above the CS-620P with no clear advantage below a 24-inch bar
Echo CS-7310P
- 73.5cc is the most displacement Echo sells in North America, rated for bars up to 32 inches
- Only 0.2 lb heavier than the 66.8cc CS-680 despite the extra displacement
- Dual felling spikes fitted as standard, where rivals often charge for the second one
- Offered with .058" gauge chain as well as .050", which holds up better in dirty wood
- Four-stage air filtration and a magnesium crankcase and sprocket cover
- Owners using it as a primary felling and bucking saw report heavy continuous duty without trouble
- 5-year consumer warranty is unheard of at this displacement
- $1,189.99-$1,309.99 — by far the most expensive saw Echo sells
- 14.8 lb powerhead before you add a long bar, chain and fuel
- Overkill below a 24-inch bar, where the much cheaper CS-620P does the same work
- Standard recoil with no spring assist — you pull a 73.5cc engine over on the rope
- The 27.1 fl. oz. fuel tank empties quickly when the engine is working long bars

