G-SHOCK Guide: GA-2100 vs DW-5600 vs GA-100
1 October 2026

G-SHOCK has been Casio's toughest watch line since 1983, and three families make up most of what people buy in Bangladesh: the slim octagonal GA-2100, the classic square DW-5600 and the big analog-digital GA-100. All three are shock resistant and 200 m water resistant, so the real question is which one suits your wrist, your style and your budget. This guide compares them side by side, with current prices at Casio Bangladesh.
Quick comparison
- GA-2100: slim octagonal "CasiOak", analog + digital, about 11.8 mm thick, 200 m water resistance, about 3 years battery. From ৳15,500. Best for daily wear and office-casual.
- DW-5600: classic square digital, compact, 200 m water resistance, about 2 years battery. From ৳12,700. Best for sports, minimal style and smaller wrists.
- GA-100: big round analog-digital, about 55 mm across, 200 m water resistance, about 2 years battery. From ৳17,500. Best for people who like big, bold watches.
GA-2100 — the slim "CasiOak"
The GA-2100 is the G-SHOCK that people who "don't wear G-SHOCK" buy. Its eight-sided bezel gave it the nickname *CasiOak*, and its Carbon Core Guard case keeps it thin (about 11.8 mm) and light (about 51 g) while staying fully shock resistant.
- Display: analog hands with a small digital window — easy to read the time at a glance, with world time, stopwatch, timer and alarms in the digital part.
- Comfort: the slim case slides under a shirt cuff, so it works for university, office-casual and weekends.
- Choice: the most colours of any G-SHOCK — all black, white, red, blue, green and metal-look versions.
Who should buy it: anyone who wants one G-SHOCK for everyday wear.
Popular models: GA-2100-1A1 (all black) and GA-2100-1A — ৳15,500. Want solar charging and Bluetooth? Look at the GA-B2100 (৳24,500). Prefer metal? The GM-2100 has a stainless steel bezel (৳25,999).
DW-5600 — the original square
The DW-5600 is the shape that started it all: a square digital G-SHOCK that has barely changed in decades because it simply works. It is compact, light and sits flat on the wrist, which makes it great for smaller wrists and for sport.
- Display: full digital with stopwatch, countdown timer, daily alarm and an EL backlight.
- Toughness: the same 200 m water resistance and shock resistance as the bigger models.
- Style: minimal and classic — it goes with almost anything.
Who should buy it: students, athletes, people with smaller wrists and anyone who likes a clean digital watch.
Popular models: DW-5600E-1V — ৳12,700, the most affordable route into G-SHOCK; DW-5600BB-1 (all black) — ৳15,000.
GA-100 — the big analog-digital
The GA-100 is G-SHOCK at full size: a large round case, big hands over a digital display and a bold look that is hard to miss. It is the choice for people who want their watch to be noticed.
- Display: analog hands plus digital readout, with world time, a 1/1000-second stopwatch, timer and multiple alarms.
- Size: large and chunky (around 55 mm across) — best on medium to large wrists.
- Use: popular for outdoor work, riding and travel.
Who should buy it: anyone who loves big watches.
Popular models: GA-100 — ৳17,500 and GA-100-1A2 — ৳18,500.
Which one should you buy?
- One watch for everything: GA-2100.
- Lowest price, small wrist or sport: DW-5600.
- Big, bold look: GA-100.
- Want solar and Bluetooth: a GA-B2100 or a GBD-200 (৳23,250, with step counter).
- Premium screw-back square: GW-5000HS-1 (৳43,500).
Browse every model in the G-SHOCK collection.
How to check your G-SHOCK is original
Fake G-SHOCKs are common in Bangladesh. Check the model number and module number printed on the case back, the sharpness of the printing on the dial and the buttons, and that every function (light, alarm, stopwatch) works. Read our full guide: How to Identify an Original Casio Watch. At Casio Bangladesh you pay cash on delivery after checking the watch yourself.
বাংলায় সংক্ষেপে
- GA-2100 — পাতলা অক্টাগন ডিজাইন, প্রতিদিন পরার জন্য সেরা। দাম ৳১৫,৫০০ থেকে।
- DW-5600 — ক্লাসিক স্কয়ার ডিজিটাল, ছোট হাত ও খেলাধুলার জন্য ভালো। দাম ৳১২,৭০০ থেকে।
- GA-100 — বড় এনালগ-ডিজিটাল, বোল্ড লুক। দাম ৳১৭,৫০০ থেকে।
- তিনটিতেই ২০০ মিটার ওয়াটার রেজিস্ট্যান্স ও শক রেজিস্ট্যান্স। সারা বাংলাদেশে ক্যাশ অন ডেলিভারি — ঘড়ি চেক করে তারপর টাকা দিন।
FAQ
Which G-SHOCK is best for daily use? The GA-2100: slim, light and easy to wear with any outfit.
What is the cheapest original G-SHOCK at Casio Bangladesh? The DW-5600E-1V at ৳12,700.
Can I swim with a G-SHOCK? Yes. All three families are 200 m water resistant, so swimming and snorkelling are fine. Do not press buttons under water.
Do G-SHOCKs come with a warranty? Every watch from Casio Bangladesh includes our 1-year shop warranty and 7-day replacement guarantee. See the warranty policy.