Gordon Staniforth’s side cruised into the next round of the FA Women’s Cup thanks to a Beth England brace.
Belles, playing in their traditional yellow and blue colours, looked comfortable against their lower league opposition but were arguably guilty of mis-firing during their fourth round encounter at the Keepmoat.
The game marked a home debut for boss Staniforth - John Buckley’s successor - as his side gave him the best of starts, rifling home the opener inside the first three minutes.
The goal came from skipper Leandra Little who lashed home following good work from England and Jess Sigsworth in the build-up.
The Belles captain should’ve had her second when she guided a Sigsworth ball goalwards, but Nikki Duncan was equal to the chance as she comfortably collected.
Little had a further chance in the 20th minute when Lauren Cresswell surged down the left and lofted in an inviting ball, however, the defender-turned-striker glanced a header wide as Coventry survived an early Belles onslaught.
The first chance for the visitors fell in the 24th minute when Melissa Kennedy was inches away from connecting with a beautifully drilled in delivery from the left.
But they soon found themselves chasing a 2-0 scoreline as Little planted a header against the post which fell kindly into the path of England who tapped in from close range in the 27th minute.
However, the hosts suffered a scare shortly after the half hour mark when Coventry reduced the deficit following Leah Williams’ blasted effort, finishing off a strong counter-attack for the visitors.
The hosts seemed to be enjoying plenty of possession from the flanks as they won several corners with Coventry using every ounce of effort to clear their lines.
Coventry had the worst possible start to the second half as England struck her second of the game inside the first minute. The forward turned brilliantly away from her marker and sent her low drive past Duncan’s out-stretched right leg for 3-1.
Little somehow diverted a ball over the bar following a powerful run from Millie Bright as Coventry held on but looked beaten in their cup clash.
Sigsworth nearly got the goal her performance merited as she stung the palms of Duncan with a rasping right-footed effort in the 70th minute.
Little later had a prodded effort cleared off the line as Smith continued to probe the Coventry backline without reward.
England international Sigsworth then managed to get herself on the scoresheet with a fine strike from distance which rippled the Coventry net for 4-1 inside 76 minutes.
Substitute Ashleigh Mills was the instigator of a superb counter-attack from the home side as she fed in Little who released Sigsworth but her shot was well blocked before Bright and England’s late efforts suffered the same fate.
The Belles were happy to allow the game to peter out as they cantered into the next round of the competition they last won 20 years ago.