Closing Recommendation
Since both are Volvo machines with the same service and the same AC cabin and GPS, decide purely on how you dig. Choose the Volvo EC200D when you load trucks all day and a faster swing plus a longer arm let you clear more from one standing spot, when you shift the machine often and want the lighter, cheaper trailer trip, and when your material is normal soil rather than hard pack. Choose the Volvo EC210 when your ground is hard or heavy and more pulling torque keeps the machine cutting, when a bigger bucket moves more per pass on volume work, when a sturdier undercarriage suits a machine that stays on tough sites, and when a larger fuel tank helps on remote jobs. So match the machine to your work: EC200D for fast truck loading and easy shifting, EC210 for hard material, bigger buckets and long site spells.