Can this phone work with international sim cards like those from Jamaica?

Yes, this phone can work with international SIM cards as it supports GSM 850 / 900 / 1800 / 1900 MHz, which are common frequencies used worldwide.

is this a u s model with u s warranty?

Hello, Thank you for contacting us in regards to your question. This particular product is being offered through a Newegg Marketplace Seller. For more information, please contact them directly through their Seller Profile page. https://www.newegg.com/Techsaurus-LTD/about Thank you, Newegg Support

Questions & Answers: Samsung Galaxy Note 9 4G LTE Unlocked Cell Phone 6.4" Midnight Black 6GB RAM

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Samsung Galaxy Note 9 4G LTE Unlocked Cell Phone 6.4" Midnight Black 6GB RAM

Qualcomm SDM845 Snapdragon 845 (10 nm) Octa-core
Dual: 12 MP + 12 MP Rear Camera 8 MP Front-Facing Camera
6GB RAM Up to 512GB MicroSD (TF Card)
6.4" Dual Edge Super AMOLED 2960 x 1440 516 ppi
Non-removable Li-Ion Battery 4000mAh
Android 8.1 Oreo
GSM 850 / 900 / 1800 / 1900 MHz
2G CDMA: CDMA800, USPCS1900
UMTS 850 / 900 / 1700(AWS) / 1900 / 2100 MHz
3G CDMA: BC0(800), BC1(1900), BC10(800)
3G TD-SCDMA: B34(2010), B39(1880)
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500), 46, 66(1700/2100), 71(600)

$399^.98 –