232tech via eBay has 32GB Samsung Galaxy S7 Unlocked LTE Smartphone (International Model, SM-G930F) on sale for $599.99. Shipping is free.

Note: Per the description: A US warranty is not available with this model and this is compatible with US Chargers (not included)

Available colors:

• Black 
• Silver
• Gold

Specs:

• 5.1" 2560x1440 Super AMOLED display
• Exynos 8890 Octa-Core processor
• 4GB RAM
• 32GB Internal Storage
• 12MP Rear + 5MP Front facing cameras
• MicroSD Card Slot (up to 200GB)
• Android 6.0 Marshmallow