Samsung Galaxy Watch R855U/SM-R855F model differences

Samsung’s next-generation Galaxy Watch with model number SM-R885U/SM-R885F has just received the FCC Approval.

Samsung Galaxy Watch R855U/SM-R855F model differences

Equipment under test Smart Wearable
Model SM-R855U
Derivative model SM-R855F
Modulation technique Bluetooth(BDR/EDR) GFSK, TT/4DQPSK, 8DPSK
Number of channels Bluetooth(BLE) GFSK
Power source OFDM
Antenna specification LTE QPSK, 16QAM
Antenna gain Bluetooth(BDR/EDR) 79 ch
Smart Wearable Bluetooth(BLE) 40 ch
SM-R855U DC 3.85 V
SM-R855F LTE/WCDMA PIFA (Housing metal) Antenna
Bluetooth(BDR/EDR) GFSK, TT/4DQPSK, 8DPSK WIFl/Bluetooth(BDR/EDR/BLE) LDS Antenna
Bluetooth(BLE) GFSK WIFl/Bluetooth(BDR/EDR/BLE) : -6.34 dBi

The difference between the basic model SM-R855U and derivative model (SM-R855F) is:

H/W is identical to the basic model and software is as follows.

a. RF Supported Band is Different.

(R855U: 3G (B2, B4, B5), 4G (B2, B4, B5, B12, B13, B25, B26, B66, B71))

(R855F: 3G (B1, B2, B4, B5, B8), 4G (B1, B2, B3, B4, B5, B7, B8, B12, B13, B20, B25, B28, B66))

– In EUR R855F : 3G (B1, B5, B8), 4G(B1, B3, B5, B7, B8, B20, B28)

b. All other protocol part is the same.

c. All other features of Volte, SUPL is the same.

d. In USA & Canada, 4G (B7) disabled by MCC code.
Because the device doesn’t support B7 roaming in USA & Canada