Z80 3G Smartwatch Phone Dual Core 1.0GHz 512MB RAM 4GB ROM Waterproof Pedometer GPS WatchParameters:Display: 1.54 inch IPS 2.5D Arc screen Type: Watch Phone OS: Android 5.1 CPU: MTK6580 Cores: 1.3GHz,Quad Core RAM: 512MB ROM: 4GB External Memory: Not Supported Compatible OS: AndroidWireless Connectivity: 3G,Bluetooth 4.0,GPS,GSM,WiFi WIFI: 802.11b/g wireless internet Network type: GSM+WCDMA Frequency: GSM 850/900/1800/1900MHz WCDMA 850/2100MHz Support 3G : Yes GPS: Yes Bluetooth: Yes Bluetooth version: V4.0Screen type: IPS Screen size: 1.54 inch Screen resolution: 320 x 320Camera type: Single camera Front camera: 2.0MPSIM Card Slot: Single SIM Speaker: SupportedPicture format: BMP,GIF,JPEG,PNG Music format: AAC,AMR,MP3,OGG,WAV Video format: 3GP,FLV,MP4,RMVBLanguages: English, Burmese, Arabic, Simplified/Traditional Chinese,Dutch, French, German, Italian, Portuguese, Spanish, Bengali, Czech, Bahasa Indonesia, Persian, Malay, Russian, Thai, Turkish, Lithuanian, Norwegian, Ukrainian, Finnish, Vietnamese, Filipino, Khmer, Korean, JapaneseAdditional Features: 2G,3G,Alarm,Bluetooth,Calculator...,Calendar,GPS,Notification,Sound Recorder,Wi-Fi Functions: Heart rate measurement,Message,Pedometer,Remote Camera,Sedentary reminder,Sleep monitoringCell Phone: 1 Battery: 480mAh Built-in USB Cable: 1 English Manual : 1Product size: 5.00 x 3.80 x 1.00 cm / 1.97 x 1.5 x 0.39 inches X01 Android 4.2 1.5 inch 3G Smartwatch Phone MTK6572 Dual Core 1.0GHz 512MB RAM 4GB ROM Waterproof Pedometer GPSParameters:Display: 1.5 inch Screen Type: Watch Phone OS: Android 4.2 CPU: MTK6572 Cores: 1GHz,Dual Core GPU: Mali-400 MP RAM: 512MB ROM: 4GB External Memory: TF card up to 32GB (not included) Compatible OS: AndroidWireless Connectivity: 3G,Bluetooth 4.0,GPS,GSM,WiFi WIFI: 802.11b/g wireless internet Network type: GSM+WCDMA Frequency: GSM 850/900/1800/1900MHz WCDMA 2100MHz Support 3G: Yes GPS: Yes Bluetooth: Yes Bluetooth version: V4.0Screen type: IPS Screen size: 1.5 inch Screen resolution: 240 x 240Camera type: Single camera Front camera: 5.0MP Video recording: YesSIM Card Slot: Single SIM(Micro SIM slot) TF card slot: Yes Microphone: Supported Speaker: SupportedPicture format: BMP,GIF,JPEG,PNG Music format: AAC,AMR,MP3,OGGLanguages: Bahasa Indonesia, Bahasa Melayu, Czech, German, English, Spanish, Filipino, French, Italian, Magyar, Dutch, Portuguese, Portuguese, Vietnamese, Turkish, Greek, Russian, Hebrew, Arab, Thai, KoreanAdditional Features: 2G,3G,Alarm,Bluetooth,Calculator...,Calendar,GPS,Notification,People,Sound Recorder,Waterproof,Wi-Fi Functions: Message,PedometerCell Phone: 1 Battery Charger: 1 Battery: 600mAh Built-in Screwdriver: 1 English Manual : 1Product size: 4.28 x 4.50 x 1.38 cm / 1.69 x 1.77 x 0.54 inchesZGPAX S8 3G Smart Watch Phone MTK6572 Dual Core 1.0GHz with 1.54 inch Touch Screen Single SIM Bluetooth CameraParameters:RAM: 512MB (472.89MB available)ROM: 4GBBluetooth version: Bluetooth V4.01.54 inch capacitive screen, 240*240 resolutionMP4/MP3/3G/GPS/WiFi Function SupportedStandby time: 2-3 hoursType: Watch PhoneOS: Android 4.4CPU: MTK6572Cores: 1GHz,Dual CoreGPU: Mali-400 MPROM: 4GBExternal memory: TF card up to 32GB (not included)WIFI: 802.11b/g/n wireless internetNetwork type: GSM+WCDMAFrequency: GSM 850/900/1800/1900MHz WCDMA 2100MHzSupport 3G : YesGPS: YesBluetooth: YesScreen type: Capacitive (2-Points)Screen size: 1.54 inchCamera type: Single cameraFront camera: 2.0MPSIM Card Slot: Single SIMMicro USB Slot: YesPicture format: BMP,GIF,JPEG,PNGMusic format: AAC,MP3Video format: 3GP,AVI,MP4Languages: German, English, Spanish, French, Italian, Dutch, Portuguese, Turkish, Russian, Arabic, Thai, ChineseAdditional Features: 3G,Alarm,Bluetooth,Calendar,GPS,MP3,People,Wi-FiBattery: 450mAh Battery (Built-in)Power Adapter: 1USB Cable: 1Estou na duvida de qual comprar. Estou mais inclinada para o Z80, principalmente por causa do desenho, do MTK6580 e das frequencias de banda 3G (850 e 2100), mas a desvantagem e que nao suporta cartao de memoria como os outros dois. Minha segunda escolha seria o X01. Bamos aveire :)Todos os 3 funcionam independentes do seu smatphone porque tem slot para sim card.No AliExpress