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加利福尼亞 eSIM

加利福尼亞國旗 - 旅遊eSIM數據卡

前往加州,HelloRoam eSIM低至HK$22.49即可連接AT&T 和 Verizon 5G網絡。掃描QR code即時啟用,覆蓋洛杉磯、舊金山及聖地亞哥各大景點,無需合約。

加州數據套餐:覆蓋洛杉磯至舊金山全線

查看套餐詳情

無限量數據

公平使用政策:每日設有數據用量門檻,門檻內享全速數據,超出後網速會降低。

已選擇1天行程

天數

天數越多,每日費用越低!

eSIM數量

幾位旅客?

1eSIM
總計
HK$26.25USD

隨時安裝您的eSIM。方案將於裝置連接目的地本地網絡時即時啟動。

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安全結帳加密,安全可靠
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加利福尼亞 eSIM由HelloRoam,由HK$22.49起,連接199+個運營商網絡,覆蓋185+個國家。掃描QR code,2分鐘內完成啟動,保留原有香港SIM卡接聽電話。即到即連,免綁約,未啟動套餐180日可退款及24/7即時客服。

  • 199+

    網絡

  • 5G

    5G support

  • 2分鐘內

    啟動

更新

加州旅遊數據套餐選擇

加利福尼亞 平價 eSIM,低至 HK$22.49。連接當地頂級4G LTE及5G網絡,相容所有支援eSIM的手機。 加州漫遊費高昂,景點Wi-Fi擁擠。HelloRoam提供eSIM方案,低至HK$22.49,透過AT&T 和 Verizon 5G網絡覆蓋好萊塢、矽谷、納帕酒鄉及洛杉磯國際機場。出發前掃描QR code完成啟用,抵達加州後即時上線。未啟動套餐180天退款保證,無需合約。

加利福尼亞 eSIM:高速5G覆蓋

HelloRoam為前往加利福尼亞州的旅客提供eSIM數據方案,透過AT&T、Verizon、T-Mobile提供5G服務。掃描QR code約5分鐘完成設定,抵達加利福尼亞州後立即上網,毋須購買當地SIM卡。

  • 方案最低HK$22.49起,5G速度
  • AT&T提供覆蓋 及1家以上電信商
  • 2 minutes內即時開通
  • 180天退款保證
  • 加利福尼亞主要城市全覆蓋
Network
5G
Plans From
HK$22.49
Activation
Under 2 min
Guarantee
180 days
加利福尼亞 — HelloRoam eSIM coverage
How to use HelloRoam

如何在加利福尼亞設定eSIM?

按照以下步驟在您的iPhone或Android手機上設定eSIM數據卡,免去機場換SIM的麻煩。
使用HelloRoam應用程式在iPhone上設定eSIM
iPhone設定畫面顯示蜂窩數據選項
10GB
最多旅客選擇
低至
1
選擇方案並網上結帳

為您的目的地選擇數據方案並完成網上結帳。

iPhone掃描eSIM QR Code
2
掃描QR Code

掃描QR Code即時安裝您的eSIM。

iPhone確認eSIM安裝
安裝中...
3
數分鐘內啟動:落機即用

您的eSIM即時安裝,抵達目的地後自動啟動。

iPhone開啟數據漫遊
4
透過應用程式一站式管理

在一個地方追蹤用量、增值數據及管理所有eSIM。

行程有變?不用擔心,我們為您保障!

行程隨時可能改變,不用擔心。HelloRoam對購買後180日內未啟動的eSIM提供全額退款。

了解更多退款政策詳情

HelloRoam 加利福尼亞 eSIM vs CSL・SmarTone漫遊

比較eSIM與實體SIM卡及國際旅遊數據計劃:HelloRoam 加利福尼亞 eSIM比CSL國際漫遊日費及中國移動香港數據漫遊附加服務更實惠。免去機場購買SIM卡的麻煩,免排隊,免換卡。由HK$22.49起享受本地網速,未啟動套餐180日可退款。

HelloRoam 加利福尼亞 eSIM vs CSL・SmarTone漫遊
Feature
HelloRoam - international eSIM data plans for travelers worldwide
本地電訊商有限數據eSIM
未啟動180日可退款Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this plan
24/7 即時聊天支援Feature included checkmark - available in eSIM planFeature included checkmark - available in eSIM planFeature included checkmark - available in eSIM plan
零啟動費用Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature included checkmark - available in eSIM plan
免費熱點分享Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this plan
不設超額數據收費Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this plan
即時QR Code發送Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature included checkmark - available in eSIM plan
加利福尼亞頂級運營商網絡Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this plan

為何選擇 HelloRoam 加利福尼亞 eSIM

HelloRoam 與其他 eSIM 服務商比較 — 加利福尼亞

選擇前往加利福尼亞的 eSIM,關鍵在退款保障、零啟用費及全天候支援。HelloRoam 提供未啟動套餐180天可退款、HK$0 啟用費、24小時客戶服務,以及即時QR code 發送。了解 HelloRoam 與 Airalo、Holafly、Saily 及其他服務商的分別。

功能比較
功能比較
HelloRoam 標誌
AiraloHolaflyNomadSailyUbigi
未啟動180天可退款Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this plan
24小時即時客服Feature included checkmark - available in eSIM planFeature included checkmark - available in eSIM planFeature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature included checkmark - available in eSIM planFeature included checkmark - available in eSIM plan
零啟用費Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this plan
免費熱點分享Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this plan
不收超額數據費Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this plan
即時QR code 發送Feature included checkmark - available in eSIM planFeature included checkmark - available in eSIM planFeature included checkmark - available in eSIM planFeature included checkmark - available in eSIM planFeature included checkmark - available in eSIM planFeature included checkmark - available in eSIM plan
加利福尼亞優質電訊商網絡Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this plan
獨立電訊商品牌識別碼 (SPN)Feature included checkmark - available in eSIM planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature not included - unavailable in this planFeature included checkmark - available in eSIM plan

什麼是e SIM?eSIM如何在加利福尼亞使用

e SIM卡是內建於手機的數碼SIM卡,毋需實體卡,毋需SIM卡托。掃描QR code,在任何支援eSIM的iPhone或Android手機上兩分鐘內完成啟動。作為加利福尼亞(加利福尼亞)旅遊數據卡的預付替代方案,免去機場購買電話卡的麻煩,免排隊,免簽約。按照設定指南,在出發前完成安裝。 安裝指南

了解更多關於eSIM的資訊
eSIM啟動及設定指南
15.56 GB
30 GB中剩餘
10GB
加利福尼亞 — mobile connectivity coverage

California eSIM Coverage Guide

T-Mobile, AT&T, and Verizon each provide 5G deployed in Los Angeles, San Francisco, San Diego, Sacramento, and the major tech corridor between San Jose and San Francisco. The I-5 and US-101 highway corridors running the length of the state have 4G at all major cities and towns.

The I-80 over the Sierra Nevada has coverage at the main mountain towns. Highway 1 along the Big Sur coast has severe coverage gaps between the Monterey Peninsula and San Luis Obispo. Yosemite Valley has limited coverage at the main visitor center, with no signal in most of the park.

Death Valley has no coverage except near the Furnace Creek Visitor Center. Highway 395 on the Eastern Sierra from Bishop to Mammoth Lakes has 4G in towns. The Napa Valley has good 4G along Highway 29 through the main wine towns.

Lake Tahoe has 4G around the main resort areas on both the California and Nevada sides.

  • HelloRoam在加利福尼亞連接AT&T 5G, Verizon 5G
  • 5G and 4G LTE across LA, San Francisco, San Diego, and all major coastal cities
  • Coverage at LAX, SFO, SAN, and all major California airports
  • Plans from HK$22.49 with instant activation for your California trip

來源FCC (2025); CPUC California Telecom Report (2025)

加利福尼亞 eSIM旅遊貼士

  1. Big Sur Has No Cell Service

    Highway 1 through Big Sur is one of the most scenic drives in the world and one of the longest stretches without mobile coverage in California. Download offline maps for the entire Big Sur section before you leave Carmel or Cambria. The road has no coverage for roughly 100 miles. Tell someone your itinerary before you drive it.

  2. National Parks Need Offline Maps

    California's national parks including Yosemite, Sequoia, Kings Canyon, and Joshua Tree have very limited or no cell coverage inside park boundaries. Download the NPS app offline maps for each park you plan to visit. Yosemite Valley has some coverage near the visitor center, but the rest of the park has none.

  3. The Bay Area and Silicon Valley Are Saturated With 5G

    San Francisco, San Jose, Oakland, and the tech corridor have some of the fastest 5G speeds in the country. T-Mobile's and AT&T's nationwide 5G both perform exceptionally here. If you are visiting tech companies, conferences, or BART stations, you can expect fast and reliable data throughout the Bay Area.

  4. Stay Connected Across California from HK$22.49

    A HelloRoam eSIM for the US covers California from San Diego beaches to San Francisco Bay, Los Angeles, Yosemite, and Napa Valley. Plans start from HK$22.49. Buy before you fly and land ready.

加利福尼亞州流動網絡深度解析

加利福尼亞州透過AT&T、Verizon、T-Mobile提供5G流動網絡服務,覆蓋主要城市及旅遊景點。市區下載速度一般超過20 Mbps,足夠使用地圖、視像通話及社交媒體。

美國西岸黃金州,5G廣泛覆蓋,科技重鎮及娛樂勝地。

HelloRoam eSIM會根據您的位置自動路由至訊號最強的電訊商網絡,市區一般可享用5G連接,毋須手動設定。偏遠地區會自動切換至覆蓋最強的網絡。

AT&T
AT&T
5G
Verizon
Verizon
5G

加利福尼亞州:HelloRoam eSIM vs 本地SIM卡 vs 漫遊費比較

前往加利福尼亞州的旅客有3種主要數據方案可選擇。以下是各方案的實際費用對比。

HelloRoam eSIM計劃推薦
參考價格

From HK$22.49 total

詳情

出發前在家掃描QR code約5分鐘完成設定,抵達加利福尼亞州後立即上網。按整個行程計費,7天行程通常比逐日漫遊費節省港幣數百元。毋須在洛杉磯國際機場(LAX)或三藩市機場(SFO)排隊購買或登記SIM卡。

加利福尼亞州當地旅遊SIM卡
參考價格

HK$39.18–HK$195.89 total

詳情

可在洛杉磯國際機場(LAX)或三藩市機場(SFO)或當地電信商門市購買。部分地區需護照登記,購買及設定過程可能需時20至40分鐘。計劃到期後餘量作廢,換卡時需更改電話號碼。

香港電訊商國際漫遊
參考價格

HK$39.18–HK$117.54/day

詳情

CSL、3HK、SmarTone及中國移動香港的國際漫遊費每日約港幣80至160元。7天行程的漫遊費可高達港幣1120元。超過2天的行程,漫遊通常不划算。

價格為2026年7月的參考價。實際節省金額可能有所不同。

Best Time to Visit California

California has diverse climates, but most visitors target the coast and the national parks. The Pacific coast of Southern California (Los Angeles, San Diego) enjoys mild, dry weather most of the year, with the best beach conditions from June through September, temperatures 22C to 28C. May and June can bring morning coastal fog (called June Gloom) that usually clears by afternoon. Northern California (San Francisco, Napa) is best in September and October, when Indian Summer brings warm, dry weather and fog is minimal. The Yosemite Valley peaks for visitors in June, July, and August. Book permits and lodges months ahead for Yosemite in summer. The national parks of Death Valley and Joshua Tree are best visited November through March, avoiding dangerous summer heat above 45C. Ski season in Lake Tahoe and the Sierra Nevada runs December through April. California's statewide wildfire season from August to October can affect air quality and park access in some years.

加利福尼亞 — best time to visit

加利福尼亞州機場與交通網絡覆蓋

加利福尼亞州的主要機場全區均有移動網絡覆蓋,您的HelloRoam eSIM抵達後即可立即上網。T-Mobile、Verizon、AT&T電訊商提供覆蓋完善的網絡,可在到達厅直接使用地圖、叫的士應用和通訊軟件。城市公共交通系統在主要車站均有訊號覆蓋,但深埋地下的隧道路段可能訊號較弱。建議在進入地下路段前下載好所需的地圖和路線信息。

加利福尼亞 熱門景點

Big Sur 旅行目的地 HelloRoam eSIM网络连接

Big Sur

无需担心网络问题,畅游Big Sur。HelloRoam eSIM即开即用。

清晨参观可以避开人群高峰。

California Street 地标景点 HelloRoam eSIM旅行数据

California Street

California Street是每位旅行者必去的景点。使用HelloRoam eSIM轻松上网。

穿舒适的鞋子,方便步行游览周边。

Malibu Beach HelloRoam eSIM数据套餐 旅行者网络连接

Malibu Beach

Malibu Beach是每位旅行者必去的景点。使用HelloRoam eSIM轻松上网。

从不同角度拍照,捕捉最佳画面。

顯示第 1 張,共 3 張

價格已驗證:

加利福尼亞 eSIM 常見問題解答

在HelloRoam選擇加州數據方案,低至HK$22.49,購買後即收到QR code。iPhone或Android掃描後完成設定,連接AT&T 和 Verizon 5G網絡,出發前設定好即可。

HelloRoam連接AT&T 和 Verizon 5G網絡,覆蓋加州全境包括洛杉磯、舊金山及聖地亞哥,方案低至HK$22.49。無合約,未啟動套餐180天退款保證。

前往加利福尼亞旅遊,HelloRoam是最佳eSIM選擇之一,連接199+個運營商網絡,覆蓋185+個國家,方案由HK$22.49起。在任何支援eSIM的解鎖手機上掃描QR code,兩分鐘內完成啟動,即享當地4G/5G及5G速度,未啟動套餐180日可退款及24/7即時聊天支援。

加利福尼亞 eSIM方案由HK$22.49起,固定數據由1GB至20GB不等。長途旅行可選擇無限量日費方案。所有HelloRoam eSIM方案均提供本地4G LTE及5G接入,不設超額收費,無需簽約。

抵達加利福尼亞後,eSIM自動連接當地4G LTE及5G運營商網絡,選擇最強可用訊號。網絡覆蓋主要城市、機場、交通要道及大部分農村地區。HelloRoam全球接入199+個運營商網絡,確保穩定網速。

獲取HelloRoam 加利福尼亞 eSIM只需三步。第一步,在helloroam.com選擇方案並完成結帳。第二步,在手機設定中選擇「加入eSIM」或「加入蜂窩方案」,掃描確認電郵中的QR code。第三步,eSIM在兩分鐘內完成安裝並啟動。前往加利福尼亞毋需到門市,無需SIM卡,即到即連。

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下載 App。 精明旅遊。

隨時隨地購買、啟用及追蹤您的 eSIM。

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掃描 QR code 下載 HelloRoam eSIM app,支援 iOS 及 Android