My Suunto Ambit2 and paired Dual Comfort Belt, which allows me to train based on effort (as measured by heart rate) instead of just pace.
{"Image ImageWidth": "1600", "Image ImageLength": "1200", "Image BitsPerSample": "[8, 8, 8]", "Image Compression": "JPEG (old-style)", "Image Make": "Canon", "Image Model": "Canon PowerShot S100", "Image StripOffsets": "27648", "Image StripByteCounts": "1054983", "Image XResolution": "180", "Image YResolution": "180", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Picasa", "Image DateTime": "2016:03:07 10:35:34", "Image Artist": "Picasa", "Image ExifOffset": "278", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "180", "Thumbnail YResolution": "180", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "4762", "Thumbnail JPEGInterchangeFormatLength": "4318", "EXIF ExposureTime": "1/800", "EXIF FNumber": "4", "EXIF ISOSpeedRatings": "80", "EXIF SensitivityType": "Standard Output Sensitivity and Recommended Exposure Index", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2015:09:29 08:43:57", "EXIF DateTimeDigitized": "2015:09:29 08:43:57", "EXIF ComponentsConfiguration": "Y", "EXIF CompressedBitsPerPixel": "3", "EXIF ShutterSpeedValue": "309/32", "EXIF ApertureValue": "4", "EXIF ExposureBiasValue": "-1/3", "EXIF MaxApertureValue": "107/32", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "8639/1000", "EXIF FlashPixVersion": "0", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2000", "EXIF ExifImageLength": "1190", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "Interoperability RelatedImageWidth": "4000", "Interoperability RelatedImageLength": "3000", "EXIF InteroperabilityOffset": "4614", "EXIF FocalPlaneXResolution": "4000000/293", "EXIF FocalPlaneYResolution": "150000/11", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF FocalLengthIn35mmFilm": "42", "EXIF SceneCaptureType": "Standard", "EXIF ImageUniqueID": "68d10fd7a84ee58e3e26f8c7b9fc6728", "EXIF CameraOwnerName": ""}