Apple Watch Magnetic Charging Dock is retailing for S$118 in Singapore but I got mine in Bangkok, Thailand, from iStudio at Siam Paragon for TH฿3,300 (S$131). It is S$13 more expensive than Singapore. Even after the VAT refund of ฿215 (S$8.50), it is still more expensive.
The Apple Watch Magnetic Charging Dock is smaller (measuring at 10.4cm in diameter) and much heavier than I expected (weighing at 154g).
The Mophie Apple Watch Dock is retailing for S$79 at EpiCentre at ION Orchard, iStudio at Paragon, Nubox at Raffles City, and Nubox at Tampines Mall. However, this product is currently out of stock in Singapore as a result of overwhelming demand. So I suggest you call up those stores to reserve one if you are interested in getting it. I hope eventually it will be available online at Apple Online Store (Singapore).
Bought the Apple Watch Magnetic Charging Cable when I was in UK for holiday. It cost £25 (S$53) excluding tax refund. I can’t really remember how much the tax refund was, but it is probably the same price in Singapore after deducting the tax refund.