You just can't beat a good old sturdy galvanised steel watering can. This sturdy british designed watering can from Burgon and Ball includes a clever handle that makes watering a breeze. The emptier it gets, the more it tips.
A single handled can requires no twisting of the back to grip the handles with both hands. The handle slips through the hand as gravity tips the can forward into the pouring position. The nozzle is removable so that you can have the option of fine or rapid watering. It is constructed of hot dip galvanised material rather than electro plated for a longer life.