5G 家居寬頻 vs 光纖 | 5G Home Broadband vs Fiber Comparison

乜嘢係 5G 家居寬頻？What Is 5G Home Broadband?

5G 家居寬頻（又叫 Fixed Wireless Access，簡稱 FWA）係一種利用 5G 流動網絡提供家居上網服務嘅方案。佢嘅運作原理同你部手機上 5G 網其實一樣，但係用一個專用嘅 5G 室內路由器（CPE，Customer Premises Equipment）接收訊號，然後透過 WiFi 或者有線連接分享俾屋企所有裝置。

5G home broadband (also called Fixed Wireless Access, or FWA) is a solution that uses the 5G mobile network to deliver home internet service. It works on the same principle as 5G on your phone, but uses a dedicated indoor 5G router (CPE -- Customer Premises Equipment) to receive the signal, then shares the connection to all your devices via WiFi or Ethernet.

簡單嚟講，你唔需要拉任何實體線入屋，只要有 5G 訊號覆蓋就可以上網。將 5G CPE 插上電源，等佢連接到附近嘅 5G 基站，就即時有 WiFi 用。呢種「即插即用」嘅特性正正係 5G 家居寬頻最大嘅賣點。

In simple terms, you do not need any physical cable running into your home -- as long as 5G coverage reaches you, you can get online. Plug in the 5G CPE, let it connect to a nearby 5G base station, and you instantly have WiFi. This "plug and play" convenience is the biggest selling point of 5G home broadband.

香港 5G 覆蓋現況 | HK 5G Coverage Status

香港嘅 5G 網絡自 2020 年開始商用，經過幾年發展，市區覆蓋率已經相當高。四大流動網絡商（CSL/1010、3HK、SmarTone、CMHK/中國移動香港）都已經喺全港主要地區建設咗大量 5G 基站。根據通訊事務管理局嘅數據，香港嘅 5G 人口覆蓋率已超過 90%。

Hong Kong's 5G network has been commercially available since 2020. After several years of development, urban coverage is already quite extensive. All four major mobile operators (CSL/1010, 3HK, SmarTone, CMHK/China Mobile Hong Kong) have built a large number of 5G base stations across major areas. According to OFCA data, Hong Kong's 5G population coverage exceeds 90%.

不過，覆蓋率高唔代表每一個室內位置都有好嘅 5G 訊號。5G 使用嘅高頻段（特別係 mmWave 毫米波同 3.5GHz 頻段）穿透建築物嘅能力比較弱。你住嘅樓層、窗口方向、附近有冇 5G 基站，都會直接影響到室內嘅 5G 訊號質素。住喺高層、面向大路嘅單位通常訊號較好；住喺低層、被其他建築物遮擋嘅單位，訊號可能差好多。

However, high coverage does not mean every indoor location gets a strong 5G signal. The higher frequency bands used by 5G (particularly mmWave and the 3.5GHz band) have weaker building penetration. Your floor level, window orientation, and proximity to a 5G base station all directly affect indoor signal quality. Units on higher floors facing main roads typically get better signal; units on lower floors shielded by other buildings may have significantly weaker reception.

速度比較：5G vs 光纖 | Speed Comparison: 5G vs Fibre

下載速度 Download Speed

5G 家居寬頻嘅實際下載速度通常介乎 100-500Mbps，視乎你嘅位置同網絡繁忙程度。喺理想條件下（靠近基站、非繁忙時段），部分用家可以達到 700Mbps 甚至更高。但同光纖寬頻比較，差距明顯：香港嘅 1000M（1Gbps）光纖計劃，實際速度通常穩定喺 800-950Mbps；2000M 計劃更可以達到 1,500Mbps 以上。如果你係要求高速嘅重度用家，光纖嘅優勢係壓倒性嘅。

5G home broadband typically delivers real-world download speeds of 100-500Mbps, depending on location and network congestion. Under ideal conditions (close to a base station, off-peak hours), some users may reach 700Mbps or higher. But compared to fibre, the gap is clear: Hong Kong's 1000M (1Gbps) fibre plans typically deliver a stable 800-950Mbps; 2000M plans can exceed 1,500Mbps. For demanding heavy users, fibre's advantage is overwhelming.

上載速度 Upload Speed

呢度係 5G 同光纖差距最大嘅地方。5G 家居寬頻嘅上載速度通常只有 20-80Mbps，因為流動網絡嘅頻譜分配以下載為主。光纖寬頻嘅上下載速度通常係對稱嘅，1000M 計劃上載都有 800-950Mbps。如果你需要經常上載大檔案、進行視像會議、做直播、或者用雲端備份，光纖嘅上載優勢至關重要。

This is where the gap between 5G and fibre is most pronounced. 5G home broadband upload speeds are typically just 20-80Mbps, because mobile network spectrum allocation prioritizes downloads. Fibre broadband typically offers symmetrical speeds -- a 1000M plan delivers 800-950Mbps upload as well. If you frequently upload large files, conduct video calls, livestream, or rely on cloud backups, fibre's upload advantage is critical.

延遲（Latency / Ping）

延遲係另一個重要指標，特別係對遊戲玩家同視像會議用家。5G 家居寬頻嘅延遲通常喺 15-40ms 之間，而光纖寬頻嘅延遲通常低於 5-10ms。雖然 5G 嘅延遲已經比 4G 大幅改善，但光纖始終更低更穩定。對於一般瀏覽網頁同睇片，15-40ms 嘅延遲其實感覺唔到分別；但如果你打機（特別係 FPS 同格鬥遊戲），或者做實時交易，低延遲嘅光纖會有明顯優勢。

Latency is another important metric, especially for gamers and video conferencing users. 5G home broadband typically has latency of 15-40ms, while fibre broadband usually sits below 5-10ms. Although 5G latency is vastly improved over 4G, fibre remains lower and more consistent. For general web browsing and video streaming, 15-40ms latency is imperceptible; but for gaming (especially FPS and fighting games) or real-time trading, fibre's low latency provides a tangible advantage.

穩定性比較 | Reliability Comparison

穩定性係 5G 家居寬頻嘅最大弱點。由於 5G 係無線技術，速度會受到多種因素影響：附近用緊同一個基站嘅人數（繁忙時段速度可能跌一半以上）、天氣（大雨或者颱風期間訊號會明顯變差）、以及訊號干擾。你可能會發現早上速度好快，但到咗晚上 7-11 點嘅黃金時段就大幅下降。

Reliability is 5G home broadband's biggest weakness. Because 5G is wireless, speeds are affected by multiple factors: the number of people using the same base station (peak-hour speeds can drop by half or more), weather (signal noticeably degrades during heavy rain or typhoons), and signal interference. You may find speeds are fast in the morning but drop significantly during the 7-11 PM peak hours.

相比之下，光纖寬頻嘅速度幾乎唔受外部因素影響。無論係打風落雨定係繁忙時段，你嘅光纖連接速度都係一樣咁穩定（除非係光纖本身故障或者供應商嘅骨幹網絡有問題，但呢啲情況極之罕見）。對於需要穩定可靠連接嘅用家（例如在家工作、線上教學、股票交易），光纖嘅穩定性無可取代。

By contrast, fibre broadband speeds are virtually immune to external factors. Rain or shine, peak or off-peak, your fibre connection delivers the same consistent speed (barring rare fibre faults or backbone issues). For users who need reliable, consistent connectivity -- working from home, online teaching, stock trading -- fibre's stability is irreplaceable.

香港 5G 家居寬頻供應商 | 5G Home Broadband Providers in HK

CSL / 1010

CSL 作為香港最大嘅流動網絡商之一，5G 覆蓋範圍廣泛，基站數量最多。佢哋嘅 5G 家居寬頻計劃通常提供無限數據，月費約 HK$198-398，視乎合約期同速度級別。CSL 嘅 5G 網絡使用 3.5GHz 同 700MHz 頻段，室內覆蓋表現整體不錯。

CSL, as one of Hong Kong's largest mobile operators, has extensive 5G coverage with the most base stations. Their 5G home broadband plans typically offer unlimited data at around HK$198-398 per month, depending on contract length and speed tier. CSL's 5G network uses the 3.5GHz and 700MHz bands, with generally good indoor coverage.

3HK（三）

3HK 嘅 5G 家居寬頻計劃價格較為進取，經常有促銷優惠。月費可低至 HK$128-268。部分計劃可能有「公平使用政策」（Fair Usage Policy），即用量超過一定上限後速度會被限制。簽約前務必了解清楚條款。3HK 同 CSL 共享部分 5G 頻譜資源。

3HK's 5G home broadband plans are aggressively priced, with frequent promotions. Monthly fees can go as low as HK$128-268. Some plans may have a Fair Usage Policy (FUP), meaning speeds are throttled after a certain usage threshold. Be sure to understand the terms before signing. 3HK shares some 5G spectrum resources with CSL.

SmarTone

SmarTone 以網絡質素見稱，佢哋嘅 5G 網絡喺多個第三方測試中表現優異。5G 家居寬頻計劃月費約 HK$198-358，通常包含無限數據。SmarTone 亦有提供 5G CPE 租借或購買選項。如果你所在地區嘅 SmarTone 5G 訊號強，佢可以提供相當唔錯嘅體驗。

SmarTone is known for network quality, and its 5G network has performed well in multiple third-party tests. 5G home broadband plans run about HK$198-358 per month, typically with unlimited data. SmarTone also offers 5G CPE rental or purchase options. If SmarTone's 5G signal is strong in your area, it can deliver a quite satisfying experience.

CMHK 中國移動香港

CMHK 嘅 5G 家居寬頻計劃通常係最平嘅，月費可以低至 HK$98-198。佢哋嘅 5G 網絡覆蓋率都唔錯，特別係喺新界同新發展區域。如果你對價格敏感而且所在地區覆蓋良好，CMHK 係一個值得考慮嘅選擇。不過部分用家反映喺某啲地區嘅速度同穩定性不如其他網絡商。

CMHK typically offers the most affordable 5G home broadband plans, with monthly fees as low as HK$98-198. Their 5G coverage is decent, particularly in the New Territories and newly developed areas. If you are price-sensitive and coverage is good in your area, CMHK is worth considering. However, some users report that speed and stability in certain areas are not as strong as other operators.

價格比較：5G vs 光纖 | Pricing Comparison: 5G vs Fibre

單純比較月費，5G 家居寬頻同光纖嘅價格其實差唔多。低檔嘅 5G 計劃可能平過光纖，但你得到嘅速度同穩定性都唔及光纖。如果用「每 Mbps 成本」嚟計算，1000M 光纖嘅性價比遠高於 5G 家居寬頻。不過，5G 家居寬頻通常免安裝費同唔需要長期合約（部分計劃提供月供制），呢個喺某啲情況下係一個優勢。

Comparing monthly fees alone, 5G home broadband and fibre are actually fairly similar. Budget 5G plans may be cheaper than fibre, but the speed and stability you get are not on par. Calculated on a "cost per Mbps" basis, 1000M fibre offers far better value than 5G home broadband. However, 5G home broadband typically has no installation fee and may not require a long-term contract (some plans offer month-to-month billing), which can be an advantage in certain situations.

5G 家居寬頻適合邊啲人？When Does 5G Home Broadband Make Sense?

1. 冇光纖覆蓋嘅地區：雖然香港嘅光纖覆蓋率好高，但某啲舊樓、村屋或者偏遠地區可能冇光纖入屋。呢啲地方嘅唯一高速上網選擇可能就係 5G 家居寬頻。

1. Areas without fibre coverage: Although Hong Kong's fibre coverage is high, some older buildings, village houses, or remote areas may lack fibre-to-the-home. In these locations, 5G home broadband may be the only high-speed option.

2. 臨時住所或短期租約：如果你係短期租住（例如幾個月嘅短租盤），5G 家居寬頻嘅「即插即用」同「免安裝」特性就非常吸引。你唔需要等師傅上門安裝，唔需要簽長期合約，搬走嗰陣直接帶走 CPE 就得。

2. Temporary housing or short-term rentals: If you are renting short-term (e.g., a few months), 5G home broadband's plug-and-play and no-installation features are very attractive. No waiting for a technician, no long-term contract, and you simply take the CPE with you when you move out.

3. 等緊光纖安裝嘅過渡期：新入伙嘅時候，光纖安裝可能需要一至兩星期。呢段時間可以先用 5G 家居寬頻頂住。

3. Bridging the gap while waiting for fibre installation: When moving into a new place, fibre installation may take one to two weeks. 5G home broadband can tide you over during this period.

4. 做後備網絡：某啲用家會將 5G 家居寬頻做為光纖嘅後備方案。萬一光纖斷線（雖然罕見），可以即時切換到 5G 保持上網。對於在家工作嘅人嚟講，呢個雙保險方案好有價值。

4. As a backup connection: Some users keep 5G home broadband as a fallback for their fibre. If fibre goes down (rare, but possible), they can switch to 5G instantly. For work-from-home professionals, this dual-connection approach provides valuable peace of mind.

5G 家居寬頻嘅缺點 | Disadvantages of 5G Home Broadband

速度波動大：正如上面提到，5G 嘅速度受環境因素影響好大，繁忙時段同非繁忙時段嘅速度可以相差幾倍。你可能朝早測速有 400Mbps，但夜晚得返 80Mbps。光纖基本上唔存在呢個問題。

Speed fluctuation: As mentioned, 5G speeds are heavily influenced by environmental factors. Peak and off-peak speeds can differ by several times. You might get 400Mbps in the morning but only 80Mbps at night. Fibre essentially does not have this issue.

天氣影響：暴雨、颱風等惡劣天氣會令 5G 訊號顯著衰減，特別係使用較高頻段嘅情況。香港每年有多次颱風同暴雨，呢個係一個實在嘅考慮。光纖因為係實體線路傳輸，基本上唔受天氣影響。

Weather impact: Heavy rain, typhoons, and severe weather noticeably degrade 5G signal, especially on higher frequency bands. Hong Kong experiences multiple typhoons and rainstorms each year, making this a real concern. Fibre transmits over physical cables and is essentially unaffected by weather.

網絡擁擠：5G 基站嘅容量係共享嘅。如果你嗰區嘅 5G 家居寬頻用家越來越多，大家分到嘅速度就越來越少。光纖入屋後，條線基本上係你獨享嘅（FTTH 架構下），唔受鄰居使用量影響。

Network congestion: 5G base station capacity is shared. As more 5G home broadband users join in your area, the speed allocated to each user decreases. With fibre-to-the-home (FTTH), the connection is essentially dedicated to you and unaffected by neighbours' usage.

數據上限：雖然大部分 5G 家居寬頻計劃標榜「無限數據」，但部分計劃有公平使用政策（FUP）。當你嘅月度用量超過一定上限（例如 500GB 或 1TB），供應商可能會降低你嘅速度。光纖計劃一般完全無限，冇 FUP。

Data caps: Although most 5G home broadband plans advertise "unlimited data," some have a Fair Usage Policy (FUP). When your monthly usage exceeds a certain threshold (e.g., 500GB or 1TB), the provider may throttle your speed. Fibre plans are generally truly unlimited with no FUP.

安裝比較 | Installation Comparison

安裝過程係 5G 家居寬頻最大嘅優勢之一。5G CPE 真正做到即插即用：拆開包裝、插上電源、等幾分鐘自動連接到 5G 網絡，然後用 App 設定 WiFi 名稱同密碼就搞掂。全程唔使 15 分鐘，完全唔需要師傅上門。

Installation is one of 5G home broadband's biggest advantages. A 5G CPE is truly plug-and-play: unbox, plug in the power, wait a few minutes for it to connect to the 5G network, then set your WiFi name and password via the app. The whole process takes under 15 minutes with no technician visit required.

光纖寬頻嘅安裝就複雜得多。首先要預約安裝時間（通常需要等 3-14 日），師傅上門之後要拉線、安裝 ONT 設備、測試線路。整個過程大約 1-2 小時，而且你要喺屋企等候。某啲舊樓如果冇光纖基建，可能仲需要額外嘅大廈工程。不過裝好之後，光纖基本上係「裝完唔使理」嘅永久方案。

Fibre broadband installation is considerably more involved. First, you need to book an installation appointment (typically a 3-14 day wait), then a technician comes to run cabling, install the ONT equipment, and test the line. The process takes about 1-2 hours, and you need to be home. Some older buildings without existing fibre infrastructure may require additional building works. However, once installed, fibre is essentially a permanent, set-and-forget solution.

未來展望 | Future Outlook

5G 技術仍然喺快速發展中。隨住 5G SA（Standalone）網絡嘅逐步普及、5G-Advanced 同未來 6G 技術嘅發展，無線家居寬頻嘅速度同穩定性會繼續提升。網絡商亦持續擴展 5G 基站密度，改善室內覆蓋。長遠嚟睇，5G 家居寬頻可能會逐漸縮小同光纖嘅差距。

5G technology continues to evolve rapidly. As 5G SA (Standalone) networks become more widespread, and with 5G-Advanced and future 6G technologies on the horizon, wireless home broadband speeds and stability will keep improving. Operators also continue expanding 5G base station density and improving indoor coverage. In the long run, 5G home broadband may gradually narrow the gap with fibre.

不過，光纖技術同樣喺進步。10Gbps（萬兆）光纖已經喺部分市場推出，未來可能會成為主流。光纖嘅物理特性（光速傳輸、無干擾、無共享頻寬）決定咗佢喺速度同穩定性方面永遠有結構性嘅優勢。所以喺可預見嘅將來，光纖仍然會係最佳嘅家居寬頻方案；5G 家居寬頻嘅角色更多係作為光纖嘅補充，而非替代。

However, fibre technology is also advancing. 10Gbps fibre is already available in some markets and may become mainstream in the future. Fibre's physical characteristics -- light-speed transmission, no interference, no shared bandwidth -- give it a permanent structural advantage in speed and stability. So for the foreseeable future, fibre remains the best home broadband solution; 5G home broadband's role is more as a complement to fibre, not a replacement.