This is a Tizen smartwatch that Samsung Electronics unveiled in September 2016. Samsung Electronics will continue the original smartwatch family look using rotary bezel rings established by Gear S2. Just as its predecessor Gear S2 is divided into sports and classical models, this time it will be released in frontier models and classical models. In addition, this time, the rotary sawtooth bezel ring, which only existed with the previous classic model, will be applied in default. For specifications, Samsung Exynos 7 Dual (7270. It uses ARM Cortex-A53 dual-core CPU and ARM Mali-T720 GPU. Compared to the Samsung Exynos 3 Dual (3250) or Qualcomm Snapdragon 400 MSM8x26, which were previously used by the Samsung Gear Series, the production process has been further refined from a 28nm process to a 14nm FinFET LPP process. In addition, it became the first smart device that used Tizen as an operating system to have a CPU architecture that supports 64-bit. RAM is an LPDDR3 SDRAM method and is 768MB. It is the first Samsung smartwatch to have 768MB of RAM. The internal memory is a single 4GB model.The display supports a 1.3-inch 360 x 360 resolution, and the panel format is Circular Super AMOLED. The size increased by about 0.1 inch compared to its predecessor, Gear S2. The pixel arrangement uses S-Stripe RGB subpixel method. It is divided into Bluetooth model and cellular model. The cellular model’s support LTE level is Cat.4, guaranteeing up to 150 Mbps for download and 50 Mbps for upload. The speed of data transmission and reception does not seem to be a very important part because it was not aimed at data communication in the first place, but at transmitting and receiving voice calls and text messages. Among the smart watches belonging to the Samsung Gear series, 4G LTE is supported for the first time. However, it is said that the model that supports cellular communication will only be released as a Frontier model. It is built into the device using e-SIM as the SIM card standard. Wi-Fi supports 802.11b/g/n at a frequency of 2.4 GHz as close communication, but not 5 GHz frequency for 802.11n. In addition, it supports US-led GPS and Russia-led GLONASS with a satellite navigation system. The battery capacity is a built-in 380 mAh. The figure is a whopping 130 mAh increase [5] compared to its predecessor, Gear S2 Bluetooth model. The charging method uses the same docking type wireless charging method as its predecessor, Gear S2, and supports wireless charging technology, which is a magnetic induction method of the WPC standard and the AirFuel standard. There is no separate physical terminal. It supports waterproof and dustproof. The rating is IP68, which is the highest level in dustproof, but one level lower than IPX9K level. It is also certified by the U.S. Army as MIL-STD-810G. It is also equipped with a heartbeat recognition sensor and is located at the center of the back of the device. When the device was released, it was equipped with Tizen 2.3 as standard. The specific operating system version is 2.3.2.14/16 [Samsung] Galaxy Gear Fit 1 and 2 Samsung Electronics unveiled the wearable smart band Galaxy S5 at MWC 2014 in February 2014. m.blog.naver.com
