It was Bermuda's second defeat in two games having lost their opening match to Bangladesh and it left them in no doubt about the huge task which awaits them in their World Cup debut next month.
It was Samad's highest international score and sent the Canadians into their final match with Bangladesh, whom they beat in the 2003 World Cup, here on Wednesday in a confident mood.
Winning the toss and electing to bat, Bermuda made 206 for 8 with middle-order batsman Lionel Cann top-scoring for the second match running with 42.
Kevin Hurdle made a quickfire 22 to help Bermuda edge past 200.
Seamer Umar Bhatti was the pick of Canada's attack taking 4 for 45 from 10 overs.
When Canada batted, they lost two quick wickets but Samad and Ian Billcliff (48) steadied the ship with a third-wicket stand of 82.
Dwayne Leverock grabbed 4-30 but Canada made it home with six overs to spare.
The 2007 World Cup gets underway on March 11 with Canada in Group C with New Zealand, England and Kenya while Bermuda will play in Group B against Sri Lanka, India and Bangladesh.
Nafees leads Bangla to convincing win: Opening batsman Shahriar Nafees hit his fourth One-day International hundred to lead Bangladesh to an eight-wicket victory over Bermuda in the first match of their three-nation series on Sunday at the Antigua Recreation Ground.
Nafees hit eight fours and three sixes in an undefeated 104 from 112, as Bangladesh successfully chased 206 for victory and reached their target with 12.3 overs to spare.
For the Bermudians, an ICC Associate side and one of the real minnows of Cricket World Cup 2007 which is being staged in the Caribbean for the first time, it was a reality check ahead of the competition which officially opens on March 11.
Ironically, Bermuda and Bangladesh have been drawn in Group B of the preliminary competition along with India and Sri Lanka.
After losing Tamin Iqbal for 11 early, Nafees added 58 for the second wicket with Aftab Ahmed and then on 134, unbroken, for the third wicket with Saqibul Hasan to take Bangladesh to victory.
Ahmed struck seven fours in 40 off 27 balls and Hasan collected two boundaries in 42 from 70 balls.
Earlier, several Bermuda batsmen got starts, but failed to carry on, after their side won the toss and chose to bat. Lionel Cann, batting at seven, hit the top score of 33, Saleem Mukuddem made 32, Janeiro Tucker got 31, and Oliver Pitcher 30.
Bermuda 206 for 8 in 50 overs (Lionel Cann 42, Kevin Hurdle 22; Umar Bhatti 4 for 45) lost to Canada 207 for 7 in 43 overs (Abdool Samad 83, Ian Billcliff 48 n o; Dwayne Leverock 4 for 30) by 3 wickets
(Sunday tie)Bermuda 205 all out in 49 overs (Lionel Cann 33, Saleem Mukuddem 32, Janeiro Tucker 31, Oliver Pitcher 30; Mohd Rafique 2 for 38) lost to Bangladesh 206 for 2 in 37.3 overs (Shahriar Nafees 104 n o, Aftab Ahmed 40, Saqibul Hasan 42 n o) by eight wickets