I bought Garmin Edge 810 GPS Bike Computer with Heart Rate Monitor and Speed/Cadence Sensor and City Navigator Street Maps For Europe https://www.amazon.co.uk/dp/B00B06K5UI/ref=cm_sw_r_awd_eN6VvbEAPJ6CK which has gone down by 15 quid since I bought it, and is only 5 quid more than the unit without maps now. My unit came with 2014 maps on an sd card. Would recommend going for that if you're able to return your previous unit to the retailer
I bought Garmin Edge 810 GPS Bike Computer with Heart Rate Monitor and Speed/Cadence Sensor and City Navigator Street Maps For Europe https://www.amazon.co.uk/dp/B00B06K5UI/ref=cm_sw_r_awd_eN6VvbEAPJ6CK which has gone down by 15 quid since I bought it, and is only 5 quid more than the unit without maps now. My unit came with 2014 maps on an sd card. Would recommend going for that if you're able to return your previous unit to the retailer