BestBuy.com has the Sprint model of the 64GB iPhone SE for $300.00 when you add a new line plus a $50 gift card.

• 4.7-inch Retina HD display
• Water- and dust-resistant (1 meter for up to 30 minutes, IP67)
• 12.0MP Wide camera; Portrait mode, Portrait Lighting, Depth Control, next-generation Smart HDR, and 4K video
• 7.0MP front camera with Portrait mode, Portrait Lighting, and Depth Control
  Touch ID for secure authentication and Apple Pay
• A13 Bionic chip with third-generation Neural Engine
• Fast-charge capable
• Wireless charging