PURE MOUNTAIN PERFORMANCE
Shaped by years of relentless development and insight from the world’s best mountain athletes, APEX 4 delivers ultra-precise GPS, best in class battery, zero-lag mapping, a microphone and speaker, plus advanced training and recovery tools to help you take on your biggest goals.Vol:26L, Weight:900g
ALPINE-GRADE ENGINEERING
LIGHTWEIGHT TITANIUM. REINFORCED LUGS. SAPPHIRE GLASS.
Grade 5 Titanium Bezel, Reinforced Lugs add strength and create a lightweight, comfortable feel
51g (46mm) and 44g (42mm) with the nylon band Scratch-Resistant Sapphire Glass 3rd-Generation Memory-in-Pixel screen
RAZOR-SHARP ACCURACY, WITHOUT LIMITS
[]
APEX 4 delivers industry-leading accuracy across GPS, pace, heart rate, and elevation tracking, along with the ultra-long battery life you have come to expect from COROS.
TOOLS FORTHE ASCENT
Accurate data, zero-lag mapping, and incredible battery set you up for success, no matter the task at-hand.
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YOUR ADVENTURE JOURNAL
Adventure Journal logs Voice Pins, terrain photos, and key details from your effort so you can review what you saw, said, and did. Plan better lines, adjust your strategy, and leverage more recon for your next big goal.#Accordions--template--26482384994687__section_accordions_with_images_kprcYa {
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LONGER BATTERY
APEX 4 pairs an always-on, 3rd-gen MIP display with deeper colors and higher contrast—built to stay clear in sun, snow, or shadows. With up to 65 hours of All Systems GPS (46mm) or 41 hours (42mm), you'll have full confidence in your watch whether it's linking up the Grand Traverse, or the full loop around Mont Blanc.
VERTICAL GPS TRACKING
With our most accurate vertical GPS algorithm yet, dual-frequency tracking, a precision heart rate sensor, and a dual-range barometer for sharper elevation and weather data, you won't have to worry about any missing meters when your activity is finished.
Frequently Asked Questions
FAST MAPPING
APEX 4’s real-time map engine renders instantly—delivering global landscape and topo maps with turn-by-turn guidance, trail names, and POIs.
65hrs of GPS battery (46mm) or 41hrs (42mm), enough to get you through your longest days.I'm looking to find out more information about a product, where can I find this?
Our most powerful mapping with free Global Maps, street and trail names, turn-by-turn navigation, and POI's
Please get in touch with a member of the team either by phone (
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const cachedData = {"plans":[{"shopify_selling_plan_group_id":98590196095,"shopify_selling_plan_id":713071886719,"enabled":true,"variant_ids":[55569712382335,55569712415103,55569712480639,55570017616255,55570017550719,55569712447871,55570017583487],"product_variants_source":"custom","name":"Preorder","preorder_button_text":"Preorder","preorder_button_description":"Note: This is a preorder. Items will ship based on the estimated delivery date.","preorder_button_description_enabled":true,"preorder_button_description_background_color":"#ebebeb","preorder_button_description_text_color":"#000000","preorder_button_description_border_radius":10,"preorder_button_description_show_quantity_limit":false,"preorder_button_description_quantity_limit_suffix":" units available for preorder","preorder_button_description_shipping_text_prefix":"Shipping: ","delivery_exact_time":null,"delivery_after_n_intervals":null,"delivery_at":"2025-07-26T09:20:18.169Z","delivery_type":"asap","quantity_limit_text":"{{ quantity }} units available for preorder","preorder_button_description_show_shipping":true,"preorder_button_description_icons_enabled":true,"preorder_shipping_text":"Shipping: {{ date }}","shipping_applies_to_all_products":true,"shipping_text":"Estimated to ship within 2 months","payment_type":"full","billing_checkout_charge_type":"percentage","billing_checkout_charge_amount":null,"billing_checkout_charge_percentage":"100.0","pricing_type":"no_discount","pricing_amount":null,"pricing_percentage":null,"discount_text":"Save {{ discount }}","billing_title":"Full payment","billing_description":null,"enable_billing_widget":false,"inventory_provider":"stoq","preorder_badge_enabled":false,"preorder_badge_text":"Preorder","preorder_badge_text_color":"#FFFFFF","preorder_badge_background_color":"#000000","preorder_discounted_price_enabled":null,"payment_line_item_property_enabled":false,"shipping_line_item_property_enabled":true,"custom_line_item_property_text":null,"preorder_button_text_color":"#ffffff","preorder_button_background_color":"#565557","preorder_button_colors_enabled":true,"markets_enabled":false,"market_id":13779632354,"shopify_market_ids":[],"use_shopify_selling_plan":true,"use_simplified_shipping_text":false,"translations":{},"payment_options":[{"billing_type":"no_remaining_balance","billing_checkout_charge_type":"percentage","billing_checkout_charge_amount":null,"billing_checkout_charge_percentage":"100.0","billing_at":"2025-07-26T09:20:38.472Z","billing_after_n_intervals":7,"billing_after_interval_type":"day","pricing_type":"no_discount","pricing_amount":null,"pricing_percentage":null,"billing_title":"Full payment","billing_description":null,"discount_text":"Save {{ discount }}","shopify_selling_plan_id":713071886719,"is_default":true,"type":"full","translations":{}}],"require_preorder_acknowledgement":false,"preorder_acknowledgement_text":"I acknowledge and agree to the preorder terms and conditions for this product.","disable_button_until_acknowledged":false,"preorder_min_quantity":null,"preorder_max_quantity":null,"countdown_timer_enabled":false,"countdown_timer_style":"text","countdown_timer_text_color":"#000000","countdown_timer_background_color":"#f5f5f5","countdown_timer_border_radius":8,"countdown_timer_format":"DHMS","countdown_timer_use_schedule_dates":true,"countdown_timer_custom_start_date":null,"countdown_timer_custom_end_date":null,"countdown_timer_starts_text":null,"countdown_timer_ends_text":null,"schedule_offer":false,"schedule_start_date":null,"schedule_end_date":null,"updated_at":"2025-08-19T10:05:43.042Z","allow_mixed_cart":true,"mixed_cart_error_message":"Preorders must be purchased separately from regular items. Please complete your current order first, or clear your cart to continue.","b2b_enabled":true,"preorder_progress_bar_enabled":false,"preorder_progress_bar_text":"{{ sold }} of {{ total }} claimed","preorder_progress_bar_fill_color":"#000000","preorder_progress_bar_background_color":"#e5e5e5","preorder_progress_bar_text_color":"#FFFFFF","preorder_progress_bar_border_radius":4,"preorder_progress_bar_show_percentage":false}],"disabled_plan_ids":[713813721471,713176482175,714631872895],"cached_at":"2026-04-09T09:16:46Z"};
if (cachedData && typeof cachedData === 'object' && cachedData.cached_at) {
// Find the maximum updated_at from all items in old array
const oldPlans = window._RestockRocketConfig.sellingPlans;
const maxUpdatedAt = Array.isArray(oldPlans) && oldPlans.length > 0
? oldPlans.reduce(function(max, plan) {
// Parse dates for proper comparison (handles mixed ISO formats)
if (plan.updated_at) {
const planDate = new Date(plan.updated_at);
const maxDate = max ? new Date(max) : null;
return (!maxDate || (planDate && !isNaN(planDate) && planDate > maxDate)) ? plan.updated_at : max;
}
return max;
}, '')
: null;
// Use cached if old array is empty/has no timestamps, or cached is newer
// Parse dates for comparison to handle format differences (+00:00 vs .000Z)
const cachedDate = new Date(cachedData.cached_at);
const maxDate = maxUpdatedAt ? new Date(maxUpdatedAt) : null;
const useCached = !maxUpdatedAt || (cachedDate && !isNaN(cachedDate) && (!maxDate || cachedDate > maxDate));
if (useCached) {
if (Array.isArray(cachedData.plans)) {
window._RestockRocketConfig.sellingPlans = cachedData.plans;
// Only use disabled_plan_ids when using cached plans
window._RestockRocketConfig.disabledSellingPlanIds = cachedData.disabled_plan_ids || [];
console.debug('[RR] Using selling plans from cachedSellingPlans (cached_at: ' + cachedData.cached_at + ')');
}
} else {
// When using old format (stale cache), don't trust disabled_plan_ids
window._RestockRocketConfig.disabledSellingPlanIds = [];
console.debug('[RR] Using selling plans from old format (max updated_at: ' + maxUpdatedAt + ')');
}
}
})();window._RestockRocketConfig.enabledNotifyMeVariantIds = [];window._RestockRocketConfig.disabledNotifyMeVariantIds = [];window._RestockRocketConfig.backInStockTemplates = [];window._RestockRocketConfig.restockNotes = {};window._RestockRocketConfig.integrations = [{"id":"15c94526-b6b8-4de1-9bc1-23b1ca52ddb0","shop_id":38436,"enabled":true,"page_types":["product","collection","index","search","page","cart","list-collections","article","blog"],"configuration":{"toastDuration":10000,"toastPosition":"bottom-right","enableXHRHijack":true,"enableFetchHijack":true,"quantityLimitDisabled":false},"type":"hijack","css_config":null,"js_config":null,"created_at":"2025-07-26T09:16:04.076Z","updated_at":"2025-07-26T09:16:04.076Z"}];window._RestockRocketConfig.obfuscateInventoryQuantity = false;window._RestockRocketConfig.product = {"id":8055069016290,"title":"Brooks Pickwick Backpack","handle":"brooks-pickwick-backpack","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"col\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cp\u003eThe Pickwick, a versatile canvas roll-top backpack. Made from water-resistant canvas and genuine Brooks leather trim, the Pickwick is the perfect bag for urban cycling.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable shoulder and chest straps\u003c\/li\u003e\n\u003cli\u003eWater-resistant canvas\u003c\/li\u003e\n\u003cli\u003eInternal laptop sleeve (Small: 13\", Medium: 15\")\u003c\/li\u003e\n\u003cli\u003eHandmade in Italy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSmall\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW:26cm, H:36-50cm, D:12cm\u003c\/li\u003e\n\u003cli\u003eVol:12L, Weight:710g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMedium\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW:31.5cm, H:44-55cm, D:15cm\u003c\/li\u003e\n\u003cli\u003eVol:26L, Weight:900g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col\"\u003e\n\u003cdiv class=\"features\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","published_at":"2023-03-18T12:02:34+00:00","created_at":"2023-03-18T12:02:34+00:00","vendor":"ProjektRide","type":"Apparel \u0026 Accessories","tags":["Accessories","backpack","Bags and Transportation","spo-cs-disabled","spo-default","spo-disabled","spo-notify-me-disabled"],"price":19000,"price_min":19000,"price_max":19000,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":43936088195298,"title":"Small","option1":"Small","option2":null,"option3":null,"sku":"BB022A07200","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Brooks Pickwick Backpack - Small","public_title":"Small","options":["Small"],"price":19000,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":43936088228066,"title":"Medium","option1":"Medium","option2":null,"option3":null,"sku":"BB022A07201","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Brooks Pickwick Backpack - Medium","public_title":"Medium","options":["Medium"],"price":19000,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/projektride.co.uk\/cdn\/shop\/products\/20416-pm.png?v=1679140956","\/\/projektride.co.uk\/cdn\/shop\/products\/20418-pm.png?v=1679140956","\/\/projektride.co.uk\/cdn\/shop\/products\/20417-pm.png?v=1679140957","\/\/projektride.co.uk\/cdn\/shop\/products\/20419-pm.png?v=1679140957"],"featured_image":"\/\/projektride.co.uk\/cdn\/shop\/products\/20416-pm.png?v=1679140956","options":["Size"],"media":[{"alt":null,"id":31694688977122,"position":1,"preview_image":{"aspect_ratio":1.0,"height":776,"width":776,"src":"\/\/projektride.co.uk\/cdn\/shop\/products\/20416-pm.png?v=1679140956"},"aspect_ratio":1.0,"height":776,"media_type":"image","src":"\/\/projektride.co.uk\/cdn\/shop\/products\/20416-pm.png?v=1679140956","width":776},{"alt":null,"id":31694689009890,"position":2,"preview_image":{"aspect_ratio":1.0,"height":776,"width":776,"src":"\/\/projektride.co.uk\/cdn\/shop\/products\/20418-pm.png?v=1679140956"},"aspect_ratio":1.0,"height":776,"media_type":"image","src":"\/\/projektride.co.uk\/cdn\/shop\/products\/20418-pm.png?v=1679140956","width":776},{"alt":null,"id":31694689042658,"position":3,"preview_image":{"aspect_ratio":1.0,"height":776,"width":776,"src":"\/\/projektride.co.uk\/cdn\/shop\/products\/20417-pm.png?v=1679140957"},"aspect_ratio":1.0,"height":776,"media_type":"image","src":"\/\/projektride.co.uk\/cdn\/shop\/products\/20417-pm.png?v=1679140957","width":776},{"alt":null,"id":31694689075426,"position":4,"preview_image":{"aspect_ratio":1.0,"height":776,"width":776,"src":"\/\/projektride.co.uk\/cdn\/shop\/products\/20419-pm.png?v=1679140957"},"aspect_ratio":1.0,"height":776,"media_type":"image","src":"\/\/projektride.co.uk\/cdn\/shop\/products\/20419-pm.png?v=1679140957","width":776}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"col\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cp\u003eThe Pickwick, a versatile canvas roll-top backpack. Made from water-resistant canvas and genuine Brooks leather trim, the Pickwick is the perfect bag for urban cycling.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable shoulder and chest straps\u003c\/li\u003e\n\u003cli\u003eWater-resistant canvas\u003c\/li\u003e\n\u003cli\u003eInternal laptop sleeve (Small: 13\", Medium: 15\")\u003c\/li\u003e\n\u003cli\u003eHandmade in Italy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSmall\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW:26cm, H:36-50cm, D:12cm\u003c\/li\u003e\n\u003cli\u003eVol:12L, Weight:710g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMedium\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW:31.5cm, H:44-55cm, D:15cm\u003c\/li\u003e\n\u003cli\u003eVol:26L, Weight:900g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col\"\u003e\n\u003cdiv class=\"features\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e"};
window._RestockRocketConfig.variantsInventoryPolicy = {43936088195298 : "continue",43936088228066 : "continue",};
window._RestockRocketConfig.variantsInventoryQuantity = {43936088195298 : parseInt("0"),43936088228066 : parseInt("4"),};
window._RestockRocketConfig.variantsPreorderCount = {43936088195298 : parseInt(""),43936088228066 : parseInt(""),};
window._RestockRocketConfig.variantsPreorderCountForMarket = {43936088195298 : null,43936088228066 : null,};
window._RestockRocketConfig.variantsPreorderMaxCount = {43936088195298 : parseInt(""),43936088228066 : parseInt(""),};
window._RestockRocketConfig.variantsPreorderMaxCountForMarket = {43936088195298 : null,43936088228066 : null,};
window._RestockRocketConfig.variantsShippingText = {43936088195298 : "",43936088228066 : "",};
window._RestockRocketConfig.variantsShippingTextForMarket = {43936088195298 : null,43936088228066 : null,};
window._RestockRocketConfig.selected_variant_id = 43936088195298;
window._RestockRocketConfig.selected_variant_available = window._RestockRocketConfig.product.variants.find(function(variant) { return variant.id == window._RestockRocketConfig.selected_variant_id }).available;window._RestockRocketConfig.scriptUrlProduct = 'https://cdn.shopify.com/extensions/019df1f9-3d6c-744a-8ce2-3dc06139ab3c/restockrocket-1-497/assets/restockrocket-product.js'
window._RestockRocketConfig.scriptUrlCollection = 'https://cdn.shopify.com/extensions/019df1f9-3d6c-744a-8ce2-3dc06139ab3c/restockrocket-1-497/assets/restockrocket-collection.js'
window._RestockRocketConfig.scriptHost = window._RestockRocketConfig.scriptUrlProduct.substring(0, window._RestockRocketConfig.scriptUrlProduct.lastIndexOf('/') + 1)
window._RestockRocketConfig.host = 'https://app.restockrocket.io'
const SETTINGS_CACHE_DURATION = 15 * 60 * 1000; // 15 minutes in milliseconds
const LIQUID_CACHE_MAX_AGE = 15 * 60; // 15 minutes in seconds
// Calculate Liquid cache freshness once at initialization
const liquidRenderedAt = window._RestockRocketConfig.liquidRenderedAt;
// Validate timestamp and calculate cache age
if (!liquidRenderedAt || typeof liquidRenderedAt !== 'number' || isNaN(liquidRenderedAt)) {
console.debug('STOQ - Invalid or missing liquidRenderedAt timestamp, assuming fresh');
window._RestockRocketConfig.isLiquidCacheFresh = true;
} else {
const now = Math.floor(Date.now() / 1000); // Current time in seconds
const liquidCacheAge = now - liquidRenderedAt; // Age in seconds
// Handle client clock ahead of server
if (liquidCacheAge
< 0) {
console.debug(`STOQ - Client clock appears ahead of server by ${Math.abs(Math.round(liquidCacheAge / 60))} minutes, assuming cache fresh`);
window._RestockRocketConfig.isLiquidCacheFresh = true;
} else if (liquidCacheAge
<= LIQUID_CACHE_MAX_AGE) {
console.debug(`STOQ - Liquid cache is fresh (${Math.round(liquidCacheAge / 60)} minutes old)`);
window._RestockRocketConfig.isLiquidCacheFresh = true;
} else {
console.debug(`STOQ - Liquid cache is stale (${Math.round(liquidCacheAge / 60)} minutes old, max ${Math.round(LIQUID_CACHE_MAX_AGE / 60)} minutes)`);
window._RestockRocketConfig.isLiquidCacheFresh = false;
}
}
function checkSettingsExpiry(settings) {
try {
if (!settings || !settings.updated_at) {
console.debug('STOQ - Invalid settings data structure');
return null;
}
if (!settings.cache) {
console.debug('STOQ - settings caching disabled');
return null;
}
// Check if translations are enabled but missing from cache
// This handles the backfill period where DB has translations but metafield doesn't
if (settings.multi_language_enabled) {
if (!settings.translations) {
// Translations enabled but no
translation data in metafield
// Metafield hasn't been backfilled yet - force refresh
console.debug('STOQ - multi-language enabled but no translation data in cache, fetching fresh');
return null;
}
// Translations object exists in metafield - cache is valid
// If current locale isn't translated, applyTranslations will gracefully use default locale from base fields
if (window._RestockRocketConfig.normalizedLocale &&
!Object.prototype.hasOwnProperty.call(settings.translations, window._RestockRocketConfig.normalizedLocale)) {
console.debug('STOQ - locale not explicitly translated, will use default language from cache');
}
// Don't return null - continue using cache even for untranslated locales
}
const updatedAt = new Date(settings.updated_at);
if (isNaN(updatedAt.getTime())) {
console.debug('STOQ - Invalid updated_at date format in settings');
return null;
}
const
Quantity
1