Samsung

 Key Features: - 768MB RAM, 4GB- 270 mAh (R810), 472 mAh (R800)- Dual-core (1.15GHz Dual) 

 Key Features: - 0.75GB RAM, 4GB- 230 mAh- Exynos 9110 (1.15GHz Dual) 

 Key Features: - 1 GB RAM, 8GB internal storage- 247 mAh (R850), 340 mAh (R840)- Dual-core (1.15GHz Dual), Exynos 9110 

 Key Features:- Bluetooth 5.0- A2DP, AVRCP, HFP- 85mAh- AccelerometerSize:Dimensions (Earbuds): 17.5 x 22.5 x 19.2 mm / (Charging Case): 38.8 x 70 x 26.5 mmWeight (Earbuds): 6.3 g / (Charging Case): 39.6 g ...

 Key Features: - 768MB RAM, 4GB- 340 mAh

 Key Features:- Bluetooth 5.0- A2DP, AVRCP, HFP- BCM 43015- Active Noise CancellationSize:Dimensions (Earbuds): 16.5 x 27.3 x 14.9 mm / (Charging Case): 50 x 50.2 x 27.8 mmWeight (Earbuds): 5.6 g / (Charging Case): 42.2 g ...

  Key Features: - 1.5GB RAM, 16GB- 361 mAh (46mm), 247 mAh (42mm)- Dual-core (1.18GHz Dual)  Network Technology:GSM / HSPA / LTE

  Key Features:- Bluetooth 5.0- IPX7- USB-C, Qi wireless charging- Five hours ANC on Size:Dimensions (Earbuds): 19.5 x 20.5 x 20.8 mm / (Charging Case): 50 x 50.2 x 27.8 mmWeight (Earbuds): 6.3 g / (Charging Case): 44.9 g ...

  Key Features:- Bluetooth 5.2- A2DP, AVRCP, HFP- Bixby Connection- 2 Way Dynamic with Powerful Bass Size:Dimensions (Earbuds): 17 x 20.9 x 21.1 mm / (Charging Case): 50 x 50.2 x 27.8 mm ...

Key Features:- Accelerometer- Proximity- Gyro- 8 MP, AF- Wifi- Bluetooth Size:Dimensions: 246.8 x 161.9 x 6.9 mmWeight: 508 g Network Technology:GSM / HSPA / LTE

Key Features:- Accelerometer- Compass- Gyro- 8 MP, AF- Wifi- Bluetooth Size:Dimensions: 212.5 x 124.7 x 8 mmWeight: 371 gNetwork Technology:GSM / HSPA / LTE

Key Features:- Fingerprint (side-mounted)- Accelerometer- Proximity- ANT+- Gyro- 13 MP, f/2.0, 26mm (wide)- Wifi- Bluetooth Size:Dimensions: 253.8 x 165.3 x 6.3 mmWeight: 500 g Network Technology:GSM / HSPA / LTE / 5G